Mercurial > hg > nginx-site
annotate xml/en/docs/njs/reference.xml @ 2667:2085eb315672
Updated description of s.send in njs Reference.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Thu, 04 Mar 2021 16:38:00 +0000 |
parents | 68c0566a375f |
children | e067ad74b0cd |
rev | line source |
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1 <?xml version="1.0"?> |
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2 |
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3 <!-- |
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4 Copyright (C) Nginx, Inc. |
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5 --> |
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6 |
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7 <!DOCTYPE article SYSTEM "../../../../dtd/article.dtd"> |
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8 |
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9 <article name="Reference" |
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10 link="/en/docs/njs/reference.html" |
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11 lang="en" |
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12 rev="65"> |
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13 |
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14 <section id="summary"> |
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15 |
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16 <para> |
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17 <link doc="index.xml">njs</link> provides objects, methods and properties |
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18 for extending nginx functionality. |
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19 </para> |
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20 |
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21 <para> |
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22 This reference contains only njs specific properties, methods and modules |
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23 not compliant with ECMAScript. |
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24 Definitions of njs properties and methods compliant with ECMAScript |
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25 can be found in |
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26 <link url="http://www.ecma-international.org/ecma-262/">ECMAScript |
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27 specification</link>. |
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28 List of all njs properties and methods can be found in |
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29 <link doc="compatibility.xml">Compatibility</link>. |
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30 </para> |
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31 |
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32 </section> |
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33 |
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34 |
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35 <section id="http_stream" name="nginx objects"> |
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36 |
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37 |
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38 <section id="http" name="HTTP Request"> |
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39 |
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40 <para> |
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41 The HTTP request object is available only in the |
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42 <link doc="../http/ngx_http_js_module.xml">ngx_http_js_module</link> module. |
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43 All string properties of the object are |
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44 <link id="string">byte strings</link>. |
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45 |
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46 <list type="tag"> |
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47 |
2353 | 48 <tag-name id="r_args"><literal>r.args{}</literal></tag-name> |
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49 <tag-desc> |
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50 request arguments object, read-only |
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51 </tag-desc> |
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52 |
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53 <tag-name id="r_done"><literal>r.done()</literal></tag-name> |
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54 <tag-desc> |
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55 after calling this function, |
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56 next data chunks will be passed to client without calling |
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57 <link doc="../http/ngx_http_js_module.xml" id="js_body_filter"/> |
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58 (<link doc="changes.xml" id="njs0.5.2">0.5.2</link>). |
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59 May be called only from the |
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60 <link doc="../http/ngx_http_js_module.xml" id="js_body_filter"/> function |
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61 </tag-desc> |
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62 |
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63 <tag-name id="r_error"><literal>r.error(<value>string</value>)</literal></tag-name> |
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64 <tag-desc> |
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65 writes a <literal>string</literal> to the error log |
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66 on the <literal>error</literal> level of logging |
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67 </tag-desc> |
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68 |
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69 <tag-name id="r_finish"><literal>r.finish()</literal></tag-name> |
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70 <tag-desc> |
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71 finishes sending a response to the client |
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72 </tag-desc> |
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73 |
2353 | 74 <tag-name id="r_headers_in"><literal>r.headersIn{}</literal></tag-name> |
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75 <tag-desc> |
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76 incoming headers object, read-only. |
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77 <para> |
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78 The <literal>Foo</literal> request header |
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79 can be accessed with the syntax: |
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80 <literal>headersIn.foo</literal> or <literal>headersIn['Foo']</literal>. |
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81 </para> |
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82 |
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83 <para> |
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84 The |
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85 <header>Authorization</header>, |
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86 <header>Content-Length</header>, |
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87 <header>Content-Range</header>, |
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88 <header>Content-Type</header>, |
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89 <header>ETag</header>, |
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90 <header>Expect</header>, |
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91 <header>From</header>, |
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92 <header>Host</header>, |
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93 <header>If-Match</header>, |
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94 <header>If-Modified-Since</header>, |
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95 <header>If-None-Match</header>, |
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96 <header>If-Range</header>, |
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97 <header>If-Unmodified-Since</header>, |
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98 <header>Max-Forwards</header>, |
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99 <header>Proxy-Authorization</header>, |
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100 <header>Referer</header>, |
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101 <header>Transfer-Encoding</header>, and |
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102 <header>User-Agent</header> |
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103 request headers can have only one field value |
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104 (<link doc="changes.xml" id="njs0.4.1">0.4.1</link>). |
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105 Duplicate field values in <header>Cookie</header> headers |
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106 are separated by semicolon (<literal>;</literal>). |
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107 Duplicate field values in all other request headers are separated by commas. |
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108 </para> |
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109 </tag-desc> |
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110 |
2331 | 111 <tag-name id="r_headers_out"><literal>r.headersOut{}</literal></tag-name> |
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112 <tag-desc> |
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113 outgoing headers object, writable. |
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114 <para> |
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115 The <header>Foo</header> response header |
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116 can be accessed with the syntax: |
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117 <literal>headersOut.foo</literal> or <literal>headersOut['Foo']</literal>. |
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118 </para> |
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119 |
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120 <para> |
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121 Field values of multi-value response headers |
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122 (<link doc="changes.xml" id="njs0.4.0">0.4.0</link>) |
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123 can be set with the syntax: |
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124 <example> |
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125 r.headersOut['Foo'] = ['a', 'b'] |
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126 </example> |
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127 where the output will be: |
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128 <example> |
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129 Foo: a |
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130 Foo: b |
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131 </example> |
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132 All previous field values of the <header>Foo</header> response header |
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133 will be deleted. |
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134 </para> |
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135 |
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136 <para> |
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137 For standard response headers |
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138 that accept only a single field value such as |
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139 <header>Content-Type</header>, |
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140 only the last element of the array will take effect. |
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141 Field values of the <header>Set-Cookie</header> response header |
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142 are always returned as an array. |
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143 Duplicate field values in |
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144 <header>Age</header>, |
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145 <header>Content-Encoding</header>, |
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146 <header>Content-Length</header>, |
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147 <header>Content-Type</header>, |
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148 <header>ETag</header>, |
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149 <header>Expires</header>, |
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150 <header>Last-Modified</header>, |
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151 <header>Location</header>, |
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152 <header>Retry-After</header> |
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153 response headers are ignored. |
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154 Duplicate field values in all other response headers |
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155 are separated by commas. |
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156 </para> |
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157 </tag-desc> |
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158 |
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159 <tag-name id="r_http_version"><literal>r.httpVersion</literal></tag-name> |
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160 <tag-desc> |
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161 HTTP version, read-only |
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162 </tag-desc> |
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163 |
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164 <tag-name id="r_internal_redirect"><literal>r.internalRedirect(<value>uri</value>)</literal></tag-name> |
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165 <tag-desc> |
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166 performs an internal redirect to the specified <literal>uri</literal>. |
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167 If the uri starts with the “<literal>@</literal>” prefix, |
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168 it is considered a named location. |
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169 The actual redirect happens after the handler execution is completed. |
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170 </tag-desc> |
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171 |
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172 <tag-name id="r_log"><literal>r.log(<value>string</value>)</literal></tag-name> |
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173 <tag-desc> |
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174 writes a <literal>string</literal> to the error log |
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175 on the <literal>info</literal> level of logging |
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176 </tag-desc> |
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177 |
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178 <tag-name id="r_method"><literal>r.method</literal></tag-name> |
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179 <tag-desc> |
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180 HTTP method, read-only |
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181 </tag-desc> |
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182 |
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183 <tag-name id="r_parent"><literal>r.parent</literal></tag-name> |
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184 <tag-desc> |
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185 references the parent request object |
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186 </tag-desc> |
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187 |
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188 <tag-name id="r_remote_address"><literal>r.remoteAddress</literal></tag-name> |
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189 <tag-desc> |
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190 client address, read-only |
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191 </tag-desc> |
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192 |
2628 | 193 <tag-name id="r_request_body"><literal>r.requestBody</literal></tag-name> |
194 <tag-desc> | |
195 the property is deprecated since | |
196 <link doc="changes.xml" id="njs0.5.0">0.5.0</link>, | |
197 the <link id="r_request_buffer"><literal>r.requestBuffer</literal></link> or | |
198 <link id="r_request_text"><literal>r.requestText</literal></link> property | |
199 should be used instead. | |
200 </tag-desc> | |
201 | |
202 <tag-name id="r_request_buffer"><literal>r.requestBuffer</literal></tag-name> | |
203 <tag-desc> | |
204 client request body if it has not been written to a temporary file | |
205 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>). | |
206 To ensure that the client request body is in memory, | |
207 its size should be limited by | |
208 <link doc="../http/ngx_http_core_module.xml" id="client_max_body_size"/>, | |
209 and a sufficient buffer size should be set using | |
210 <link doc="../http/ngx_http_core_module.xml" id="client_body_buffer_size"/>. | |
211 The property is available only in the | |
212 <link doc="../http/ngx_http_js_module.xml" id="js_content"/> directive. | |
213 </tag-desc> | |
214 | |
215 <tag-name id="r_request_text"><literal>r.requestText</literal></tag-name> | |
216 <tag-desc> | |
217 the same as <link id="r_request_buffer"><literal>r.requestBuffer</literal></link>, | |
218 but returns a <literal>string</literal>. | |
219 Note that | |
220 it may convert bytes invalid in utf8 encoding into the replacement character. | |
221 </tag-desc> | |
222 | |
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223 <tag-name id="r_raw_headers_in"><literal>r.rawHeadersIn{}</literal></tag-name> |
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224 <tag-desc> |
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225 returns an array of key-value pairs |
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226 exactly as they were received from the client |
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227 (<link doc="changes.xml" id="njs0.4.1">0.4.1</link>). |
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228 <para> |
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229 For example, with the following request headers: |
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230 <example> |
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231 Host: localhost |
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232 Foo: bar |
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233 foo: bar2 |
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234 </example> |
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235 the output of <literal>r.rawHeadersIn</literal> will be: |
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236 <example> |
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237 [ |
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238 ['Host', 'localhost'], |
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239 ['Foo', 'bar'], |
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240 ['foo', 'bar2'] |
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241 ] |
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242 </example> |
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243 All <literal>foo</literal> headers |
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244 can be collected with the syntax: |
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245 <example> |
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246 r.rawHeadersIn.filter(v=>v[0].toLowerCase() == 'foo').map(v=>v[1]) |
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247 </example> |
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248 the output will be: |
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249 <example> |
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250 ['bar', 'bar2'] |
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251 </example> |
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252 Header field names are not converted to lower case, |
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253 duplicate field values are not merged. |
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254 </para> |
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255 </tag-desc> |
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256 |
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257 <tag-name id="r_raw_headers_out"><literal>r.rawHeadersOut{}</literal></tag-name> |
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258 <tag-desc> |
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259 returns an array of key-value pairs of response headers |
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260 (<link doc="changes.xml" id="njs0.4.1">0.4.1</link>). |
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261 Header field names are not converted to lower case, |
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262 duplicate field values are not merged. |
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263 </tag-desc> |
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264 |
2628 | 265 <tag-name id="r_response_body"><literal>r.responseBody</literal></tag-name> |
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266 <tag-desc> |
2628 | 267 the property is deprecated since |
268 <link doc="changes.xml" id="njs0.5.0">0.5.0</link>, | |
269 the <link id="r_response_buffer"><literal>r.responseBuffer</literal></link> | |
270 or | |
271 the <link id="r_response_text"><literal>r.responseText</literal></link> | |
272 property | |
273 should be used instead. | |
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274 </tag-desc> |
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275 |
2628 | 276 <tag-name id="r_response_buffer"><literal>r.responseBuffer</literal></tag-name> |
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277 <tag-desc> |
2628 | 278 holds the <link id="r_subrequest">subrequest</link> response body, |
279 read-only | |
280 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>). | |
281 The size of <literal>r.responseBuffer</literal> is limited by the | |
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282 <link doc="../http/ngx_http_core_module.xml" id="subrequest_output_buffer_size"/> |
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283 directive. |
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284 </tag-desc> |
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285 |
2628 | 286 <tag-name id="r_response_text"><literal>r.responseText</literal></tag-name> |
287 <tag-desc> | |
288 the same as <link id="r_response_buffer"><literal>r.responseBuffer</literal></link> | |
289 but returns a string | |
290 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>). | |
291 Note that | |
292 it may convert bytes invalid in utf8 encoding into the replacement character. | |
293 </tag-desc> | |
294 | |
295 <tag-name id="r_return"><literal>r.return(status[, | |
296 string | Buffer])</literal></tag-name> | |
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297 <tag-desc> |
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298 sends the entire response |
2628 | 299 with the specified <literal>status</literal> to the client. |
300 The response can be a string or Buffer | |
301 (<link doc="changes.xml" id="njs0.5.0">0.5.0</link>). | |
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302 <para> |
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303 It is possible to specify either a redirect URL |
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304 (for codes 301, 302, 303, 307, and 308) |
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305 or the response body text (for other codes) as the second argument |
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306 </para> |
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307 </tag-desc> |
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308 |
2628 | 309 <tag-name id="r_send"><literal>r.send(string |
310 | Buffer)</literal></tag-name> | |
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311 <tag-desc> |
2628 | 312 sends a part of the response body to the client. |
313 The data sent can be a string or Buffer | |
314 (<link doc="changes.xml" id="njs0.5.0">0.5.0</link>) | |
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315 </tag-desc> |
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316 |
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317 <tag-name id="r_sendbuffer"><literal>r.sendBuffer(<value>data</value>[, |
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318 <value>options</value>])</literal></tag-name> |
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319 <tag-desc> |
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320 adds data to the chain of data chunks to be forwarded to the next body filter |
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321 (<link doc="changes.xml" id="njs0.5.2">0.5.2</link>). |
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322 The actual forwarding happens later, |
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323 when the all the data chunks of the current chain are processed. |
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324 <para> |
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325 The data can be a string or Buffer. |
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326 The <literal>options</literal> is an object used |
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327 to override nginx buffer flags derived from an incoming data chunk buffer. |
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328 The flags can be overridden with the following flags: |
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329 <list type="tag"> |
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330 |
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331 <tag-name><literal>last</literal></tag-name> |
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332 <tag-desc> |
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333 boolean, |
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334 true if the buffer is the last buffer |
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335 </tag-desc> |
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336 |
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337 <tag-name><literal>flush</literal></tag-name> |
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338 <tag-desc> |
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339 boolean, |
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340 true if the buffer should have the <literal>flush</literal> flag |
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341 </tag-desc> |
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342 </list> |
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343 </para> |
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344 The method may be called only from the |
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345 <link doc="../http/ngx_http_js_module.xml" id="js_body_filter"/> function. |
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346 </tag-desc> |
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347 |
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348 <tag-name id="r_send_header"><literal>r.sendHeader()</literal></tag-name> |
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349 <tag-desc> |
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350 sends the HTTP headers to the client |
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351 </tag-desc> |
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352 |
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353 <tag-name id="r_status"><literal>r.status</literal></tag-name> |
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354 <tag-desc> |
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355 status, writable |
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356 </tag-desc> |
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357 |
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358 <tag-name id="r_subrequest"><literal>r.subrequest(<value>uri</value>[, |
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359 <value>options</value>[, <value>callback</value>]])</literal></tag-name> |
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360 <tag-desc> |
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361 creates a subrequest with the given <literal>uri</literal> and |
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362 <literal>options</literal>, and installs |
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363 an optional completion <literal>callback</literal>. |
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364 |
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365 <para> |
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366 A |
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367 <link doc="../dev/development_guide.xml.xml" id="http_subrequests">subrequest</link> |
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368 shares its input headers with the client request. |
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369 To send headers different from original headers to a proxied server, the |
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370 <link doc="../http/ngx_http_proxy_module.xml" id="proxy_set_header"/> |
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371 directive can be used. |
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372 To send a completely new set of headers to a proxied server, the |
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373 <link doc="../http/ngx_http_proxy_module.xml" id="proxy_pass_request_headers"/> |
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374 directive can be used. |
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375 </para> |
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376 |
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377 <para> |
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378 If <literal>options</literal> is a string, then it |
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379 holds the subrequest arguments string. |
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380 Otherwise, <literal>options</literal> is expected to be |
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381 an object with the following keys: |
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382 <list type="tag"> |
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383 <tag-name><literal>args</literal></tag-name> |
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384 <tag-desc> |
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385 arguments string, by default an empty string is used |
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386 </tag-desc> |
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387 <tag-name><literal>body</literal></tag-name> |
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388 <tag-desc> |
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389 request body, |
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390 by default the request body of the parent request object is used |
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391 </tag-desc> |
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392 |
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393 <tag-name><literal>method</literal></tag-name> |
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394 <tag-desc> |
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395 HTTP method, by default the <literal>GET</literal> method is used |
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396 </tag-desc> |
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397 |
2507 | 398 <tag-name><literal>detached</literal></tag-name> |
399 <tag-desc> | |
400 boolean flag (<link doc="changes.xml" id="njs0.3.9">0.3.9</link>), | |
401 if <literal>true</literal>, the created subrequest is a detached subrequest. | |
402 Responses to detached subrequests are ignored. | |
403 Unlike ordinary subrequests, a detached subrequest | |
404 can be created inside a variable handler. | |
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405 The <literal>detached</literal> flag and callback argument |
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406 are mutually exclusive. |
2507 | 407 </tag-desc> |
408 | |
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409 </list> |
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410 </para> |
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411 |
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412 <para> |
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413 The completion <literal>callback</literal> receives |
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414 a subrequest response object with methods and properties |
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415 identical to the parent request object. |
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416 </para> |
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417 |
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418 <para> |
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419 Since <link doc="changes.xml" id="njs0.3.8">0.3.8</link>, |
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420 if a <literal>callback</literal> is not provided, |
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421 the <literal>Promise</literal> object |
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422 that resolves to the subrequest response object is returned. |
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423 </para> |
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424 </tag-desc> |
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425 |
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426 <tag-name id="r_uri"><literal>r.uri</literal></tag-name> |
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427 <tag-desc> |
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428 current <link doc="../http/ngx_http_core_module.xml" id="var_uri">URI</link> |
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429 in request, |
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430 <link doc="../http/ngx_http_core_module.xml" id="location">normalized</link>, |
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431 read-only |
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432 </tag-desc> |
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433 |
2628 | 434 <tag-name id="r_raw_variables"><literal>r.rawVariables{}</literal></tag-name> |
435 <tag-desc> | |
436 nginx <link id="r_variables">variables</link> as Buffers, | |
437 writable | |
438 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>) | |
439 </tag-desc> | |
440 | |
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441 <tag-name id="r_variables"><literal>r.variables{}</literal></tag-name> |
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442 <tag-desc> |
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443 nginx variables object, writable |
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444 (since <link doc="changes.xml" id="njs0.2.8">0.2.8</link>) |
2545
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445 </tag-desc> |
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446 |
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447 <tag-name id="r_warn"><literal>r.warn(<value>string</value>)</literal></tag-name> |
2545
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448 <tag-desc> |
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449 writes a <literal>string</literal> to the error log |
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450 on the <literal>warning</literal> level of logging |
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451 </tag-desc> |
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452 |
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453 </list> |
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454 </para> |
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455 |
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456 </section> |
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457 |
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458 |
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459 <section id="stream" name="Stream Session"> |
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460 |
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461 <para> |
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462 The stream session object is available only in the |
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463 <link doc="../stream/ngx_stream_js_module.xml">ngx_stream_js_module</link> |
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464 module. |
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465 All string properties of the object are <link id="string">byte strings</link>. |
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466 </para> |
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467 |
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468 <para> |
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469 <list type="tag"> |
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470 |
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471 <tag-name id="s_allow"><literal>s.allow()</literal></tag-name> |
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472 <tag-desc> |
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473 successfully finalizes the phase handler |
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474 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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475 </tag-desc> |
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476 |
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477 <tag-name id="s_decline"><literal>s.decline()</literal></tag-name> |
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478 <tag-desc> |
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479 finalizes the phase handler and passes control to the next handler |
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480 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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481 </tag-desc> |
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482 |
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483 <tag-name id="s_deny"><literal>s.deny()</literal></tag-name> |
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484 <tag-desc> |
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485 finalizes the phase handler with the access error code |
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486 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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487 </tag-desc> |
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|
488 |
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489 <tag-name id="s_done"><literal>s.done</literal>(<value>[code]</value>)</tag-name> |
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490 <tag-desc> |
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491 successfully finalizes the current phase handler |
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492 or finalizes it with the specified numeric code |
2337
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493 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
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494 </tag-desc> |
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495 |
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496 <tag-name id="s_error"><literal>s.error(<value>string</value>)</literal></tag-name> |
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497 <tag-desc> |
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498 writes a sent <literal>string</literal> to the error log |
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499 on the <literal>error</literal> level of logging |
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500 </tag-desc> |
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501 |
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502 <tag-name id="s_log"><literal>s.log(<value>string</value>)</literal></tag-name> |
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503 <tag-desc> |
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504 writes a sent <value>string</value> to the error log |
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505 on the <literal>info</literal> level of logging |
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506 </tag-desc> |
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507 |
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508 <tag-name id="s_off"><literal>s.off(<value>eventName</value>)</literal></tag-name> |
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509 <tag-desc> |
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510 unregisters the callback set by the <link id="s_on">s.on()</link> method |
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Updated links to changes.xml in njs Reference.
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511 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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512 </tag-desc> |
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|
513 |
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514 <tag-name id="s_on"><literal>s.on(<value>event</value>, |
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515 <value>callback</value>)</literal></tag-name> |
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516 <tag-desc> |
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517 registers a <literal>callback</literal> |
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parents:
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518 for the specified <literal>event</literal> |
2337
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Updated links to changes.xml in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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|
519 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
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520 |
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521 <para> |
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522 An <literal>event</literal> may be one of the following strings: |
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523 <list type="tag"> |
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524 <tag-name><literal>upload</literal></tag-name> |
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525 <tag-desc> |
2628 | 526 new data (string) from a client |
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527 </tag-desc> |
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528 |
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529 <tag-name><literal>download</literal></tag-name> |
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530 <tag-desc> |
2628 | 531 new data (string) to a client |
532 </tag-desc> | |
533 | |
534 <tag-name><literal>upstream</literal></tag-name> | |
535 <tag-desc> | |
536 new data (Buffer) from a client | |
537 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>) | |
538 </tag-desc> | |
539 | |
540 <tag-name><literal>downstream</literal></tag-name> | |
541 <tag-desc> | |
542 new data (Buffer) to a client | |
543 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>) | |
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544 </tag-desc> |
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|
545 |
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Created "nginx objects" section in reference.xml.
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|
546 </list> |
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|
547 </para> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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|
548 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
549 <para> |
0f16ef9a8dbe
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2246
diff
changeset
|
550 The completion callback has the following prototype: |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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|
551 <literal>callback(data, flags)</literal>, where |
2628 | 552 <literal>data</literal> is string or Buffer (depending on the event type) |
2247
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
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|
553 <literal>flags</literal> is an object |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
554 with the following properties: |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
555 <list type="tag"> |
0f16ef9a8dbe
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parents:
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diff
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|
556 <tag-name id="s_on_callback_last"><literal>last</literal></tag-name> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
2246
diff
changeset
|
557 <tag-desc> |
0f16ef9a8dbe
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parents:
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|
558 a boolean value, true if data is a last buffer. |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
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|
559 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
560 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
2246
diff
changeset
|
561 </list> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
562 </para> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2246
diff
changeset
|
563 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
564 |
2570
44792f1ee284
Added IDs to methods in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2569
diff
changeset
|
565 <tag-name id="s_remote_address"><literal>s.remoteAddress</literal></tag-name> |
2247
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2246
diff
changeset
|
566 <tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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|
567 client address, read-only |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
568 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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|
569 |
2628 | 570 <tag-name id="s_raw_variables"><literal>s.rawVariables</literal></tag-name> |
571 <tag-desc> | |
572 nginx <link id="s_variables">variables</link> as Buffers, | |
573 writable | |
574 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>) | |
575 </tag-desc> | |
576 | |
2247
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parents:
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|
577 <tag-name id="s_send"><literal>s.send(<value>data</value>[, |
0f16ef9a8dbe
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parents:
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|
578 <value>options</value>])</literal></tag-name> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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|
579 <tag-desc> |
2667
2085eb315672
Updated description of s.send in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
580 adds data to the chain of data chunks that will be forwarded in |
2085eb315672
Updated description of s.send in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2666
diff
changeset
|
581 the forward direction: |
2085eb315672
Updated description of s.send in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2666
diff
changeset
|
582 in download callback to a client; in upload to an upstream server |
2337
867fe207f13e
Updated links to changes.xml in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
583 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
2667
2085eb315672
Updated description of s.send in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2666
diff
changeset
|
584 The actual forwarding happens later, |
2085eb315672
Updated description of s.send in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2666
diff
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|
585 when the all the data chunks of the current chain are processed. |
2085eb315672
Updated description of s.send in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
586 <para> |
2628 | 587 The data can be a string or Buffer |
588 (<link doc="changes.xml" id="njs0.5.0">0.5.0</link>). | |
2247
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changeset
|
589 The <literal>options</literal> is an object used |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
2246
diff
changeset
|
590 to override nginx buffer flags derived from an incoming data chunk buffer. |
2579
63cef7604e0d
Minor review of njs Reference for typos and style.
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parents:
2578
diff
changeset
|
591 The flags can be overridden with the following flags: |
2247
0f16ef9a8dbe
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
592 <list type="tag"> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
593 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
changeset
|
594 <tag-name><literal>last</literal></tag-name> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
changeset
|
595 <tag-desc> |
2579
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parents:
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diff
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|
596 boolean, |
63cef7604e0d
Minor review of njs Reference for typos and style.
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|
597 true if the buffer is the last buffer |
2247
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Created "nginx objects" section in reference.xml.
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|
598 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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diff
changeset
|
599 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
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2246
diff
changeset
|
600 <tag-name><literal>flush</literal></tag-name> |
0f16ef9a8dbe
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parents:
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changeset
|
601 <tag-desc> |
2579
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Minor review of njs Reference for typos and style.
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parents:
2578
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|
602 boolean, |
63cef7604e0d
Minor review of njs Reference for typos and style.
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parents:
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diff
changeset
|
603 true if the buffer should have the <literal>flush</literal> flag |
2247
0f16ef9a8dbe
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parents:
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diff
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|
604 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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|
605 </list> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
606 </para> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
changeset
|
607 The method can be called multiple times per callback invocation. |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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changeset
|
608 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
changeset
|
609 |
2665
529114f1108a
Documented s.status property in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2663
diff
changeset
|
610 <tag-name id="s_status"><literal>s.status</literal></tag-name> |
529114f1108a
Documented s.status property in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
611 <tag-desc> |
529114f1108a
Documented s.status property in njs Reference.
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diff
changeset
|
612 session status code, an alias to the |
529114f1108a
Documented s.status property in njs Reference.
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parents:
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diff
changeset
|
613 <link doc="../stream/ngx_stream_core_module.xml" id="var_status"><literal>$status</literal></link> |
529114f1108a
Documented s.status property in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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|
614 variable, |
529114f1108a
Documented s.status property in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
615 read only |
529114f1108a
Documented s.status property in njs Reference.
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parents:
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diff
changeset
|
616 (since <link doc="changes.xml" id="njs0.5.2">0.5.2</link>) |
529114f1108a
Documented s.status property in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2663
diff
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|
617 </tag-desc> |
529114f1108a
Documented s.status property in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
618 |
2338
39ac205f90b7
Documented that r.variables{} and s.variables{} are writable.
Yaroslav Zhuravlev <yar@nginx.com>
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|
619 <tag-name id="s_variables"><literal>s.variables{}</literal></tag-name> |
2247
0f16ef9a8dbe
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|
620 <tag-desc> |
2338
39ac205f90b7
Documented that r.variables{} and s.variables{} are writable.
Yaroslav Zhuravlev <yar@nginx.com>
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|
621 nginx variables object, writable |
39ac205f90b7
Documented that r.variables{} and s.variables{} are writable.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
622 (since <link doc="changes.xml" id="njs0.2.8">0.2.8</link>) |
2247
0f16ef9a8dbe
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parents:
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changeset
|
623 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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changeset
|
624 |
2570
44792f1ee284
Added IDs to methods in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
625 <tag-name id="s_warn"><literal>s.warn(<value>string</value>)</literal></tag-name> |
2247
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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changeset
|
626 <tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
changeset
|
627 writes a sent <literal>string</literal> to the error log |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
changeset
|
628 on the <literal>warning</literal> level of logging |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
changeset
|
629 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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630 |
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631 </list> |
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632 </para> |
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633 |
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634 </section> |
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635 |
2628 | 636 |
2653
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637 <section id="response" name="Response"> |
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638 |
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639 <para> |
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640 The <literal>Response</literal> interface is available since |
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641 <link doc="changes.xml" id="njs0.5.1">0.5.1</link>. |
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642 |
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643 <list type="tag"> |
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644 |
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645 <tag-name id="response_arraybuffer"><literal>arrayBuffer()</literal></tag-name> |
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646 <tag-desc> |
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647 Takes a <literal>Response</literal> stream and reads it to completion. |
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648 Returns a <literal>Promise</literal> that resolves with |
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649 an <literal>ArrayBuffer</literal>. |
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650 </tag-desc> |
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|
651 |
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652 <tag-name id="response_bodyused"><literal>bodyUsed</literal></tag-name> |
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653 <tag-desc> |
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654 A boolean value, <literal>true</literal> |
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655 if the body was read. |
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656 </tag-desc> |
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657 |
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658 <tag-name id="response_headers"><literal>headers</literal></tag-name> |
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659 <tag-desc> |
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660 The <literal>Headers</literal> read-only object associated with the |
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661 <link id="global_response"><literal>Response</literal></link>: |
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662 |
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663 <list type="tag"> |
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664 |
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665 <tag-name id="headers_get"><literal>get(<value>name</value>)</literal></tag-name> |
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666 <tag-desc> |
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667 returns a string containing the values of all headers with the specified name |
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668 separated by a comma and a space |
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669 </tag-desc> |
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670 |
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671 <tag-name id="headers_getall"><literal>getAll(<value>name</value>)</literal></tag-name> |
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672 <tag-desc> |
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673 returns an array containing the values of all headers with the specified name |
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674 </tag-desc> |
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675 |
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676 <tag-name id="headers_has"><literal>has(<value>name</value>)</literal></tag-name> |
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677 <tag-desc> |
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678 returns a boolean value |
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679 indicating whether a header with the specified name exists |
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680 </tag-desc> |
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681 |
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682 </list> |
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683 </tag-desc> |
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|
684 |
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|
685 <tag-name id="response_json"><literal>json()</literal></tag-name> |
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686 <tag-desc> |
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687 Takes a <literal>Response</literal> stream and reads it to completion. |
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|
688 Returns a <literal>Promise</literal> that resolves with |
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689 the result of parsing the body text as JSON. |
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690 </tag-desc> |
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|
691 |
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692 <tag-name id="response_ok"><literal>ok</literal></tag-name> |
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693 <tag-desc> |
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694 A boolean value, <literal>true</literal> |
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695 if the response was successful (status codes between 200–299). |
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696 </tag-desc> |
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697 |
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698 <tag-name id="response_redirect"><literal>redirected</literal></tag-name> |
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699 <tag-desc> |
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700 A boolean value, <literal>true</literal> |
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701 if the response is the result of a redirect. |
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702 </tag-desc> |
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|
703 |
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704 <tag-name id="response_status"><literal>status</literal></tag-name> |
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705 <tag-desc> |
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|
706 The status code of the response. |
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707 </tag-desc> |
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|
708 |
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|
709 <tag-name id="response_statustext"><literal>statusText</literal></tag-name> |
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|
710 <tag-desc> |
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|
711 The status message corresponding to the status code. |
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712 </tag-desc> |
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|
713 |
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714 <tag-name id="response_text"><literal>text()</literal></tag-name> |
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|
715 <tag-desc> |
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716 Takes a <literal>Response</literal> stream and reads it to completion. |
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717 Returns a <literal>Promise</literal> that resolves with a string. |
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718 </tag-desc> |
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|
719 |
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|
720 <tag-name id="response_type"><literal>type</literal></tag-name> |
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Documented ngx.fetch and Response interface in njs.
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|
721 <tag-desc> |
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|
722 The type of the response. |
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|
723 </tag-desc> |
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724 |
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Documented ngx.fetch and Response interface in njs.
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725 <tag-name id="response_url"><literal>url</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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726 <tag-desc> |
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|
727 The URL of the response. |
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728 </tag-desc> |
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|
729 |
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|
730 </list> |
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Documented ngx.fetch and Response interface in njs.
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|
731 </para> |
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Documented ngx.fetch and Response interface in njs.
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|
732 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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|
733 </section> |
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|
734 |
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|
735 |
2628 | 736 <section id="ngx" name="ngx"> |
737 | |
738 <para> | |
739 The <literal>ngx</literal> global object is available | |
740 since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>. | |
741 <list type="tag"> | |
742 | |
2653
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|
743 <tag-name id="ngx_fetch"><literal>ngx.fetch(<value>url</value>, |
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|
744 [<value>options</value>])</literal></tag-name> |
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|
745 <tag-desc> |
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changeset
|
746 Makes a request to fetch an URL |
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Documented ngx.fetch and Response interface in njs.
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747 (<link doc="changes.xml" id="njs0.5.1">0.5.1</link>), |
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changeset
|
748 returns a <literal>Promise</literal> that resolves with |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
749 the <link id="global_response"><literal>Response</literal></link> object. |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
750 Only the <literal>http://</literal> scheme is supported, |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
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diff
changeset
|
751 redirects are not handled. |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
752 <para> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
753 The <literal>options</literal> parameter is expected to be an object |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
754 with the following keys: |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
755 <list type="tag"> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
756 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
757 <tag-name id="fetch_body"><literal>body</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
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|
758 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
759 request body, |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
760 by default is empty |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
761 </tag-desc> |
9fc25ea7a92c
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
762 |
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Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
763 <tag-name id="fetch_buffer_size"><literal>buffer_size</literal></tag-name> |
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parents:
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diff
changeset
|
764 <tag-desc> |
9fc25ea7a92c
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
765 the buffer size for reading the response, |
9fc25ea7a92c
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
766 by default is <literal>4096</literal> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
767 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
768 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
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diff
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|
769 <tag-name id="fetch_headers"><literal>headers</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
770 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
771 request headers object |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
772 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
773 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
774 <tag-name id="fetch_get"><literal>max_response_body_size</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
775 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
776 the maximum size of the response body in bytes, |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
777 by default is <literal>32768</literal> |
9fc25ea7a92c
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
778 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
779 |
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Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
780 <tag-name id="fetch_method"><literal>method</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
781 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
782 HTTP method, |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
783 by default the <literal>GET</literal> method is used |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
784 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
785 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
786 </list> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
787 Example: |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
788 <example> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
789 ngx.fetch('http://nginx.org/') |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
790 .then(reply => reply.text()) |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
791 .then(body => r.return(200, body)) |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
792 .catch(e => r.return(501, e.message)) |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
793 </example> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
794 </para> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
795 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
796 |
2628 | 797 <tag-name id="ngx_log"><literal>ngx.log</literal>(<value>level</value>, |
798 <value>message</value>)</tag-name> | |
799 <tag-desc> | |
800 Writes a message to the error log with the specified level of logging. | |
801 The <value>level</value> parameter specifies one of the log levels, | |
802 the <value>message</value> parameter can be a string or Buffer. | |
803 The following log levels can be specified: | |
804 <literal>ngx.INFO</literal>, | |
805 <literal>ngx.WARN</literal>, and | |
806 <literal>ngx.ERR</literal>. | |
807 </tag-desc> | |
2653
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
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diff
changeset
|
808 |
2628 | 809 </list> |
810 </para> | |
811 | |
812 </section> | |
813 | |
2247
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2246
diff
changeset
|
814 </section> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
815 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
816 |
2176 | 817 <section id="core" name="Core"> |
818 | |
819 | |
2405
dbf68c949522
Documented the "process" global object.
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parents:
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diff
changeset
|
820 <section id="core_global" name="Global"> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
821 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
822 |
2666
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
823 <section id="njs" name="njs"> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
824 |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
825 <para> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
826 The <literal>njs</literal> object is a global object |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
827 that represents the current VM instance |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
828 (since <link doc="changes.xml" id="njs0.2.0">0.2.0</link>). |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
829 </para> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
830 |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
831 <para> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
832 <list type="tag"> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
833 |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
834 <tag-name id="njs_version"><literal>njs.version</literal></tag-name> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
835 <tag-desc> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
836 Returns a string with the current version of njs |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
837 (for example, “0.5.2”). |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
838 </tag-desc> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
839 |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
840 <tag-name id="njs_dump"><literal>njs.dump(<value>value</value>)</literal></tag-name> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
841 <tag-desc> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
842 Returns the pretty-print string representation for a value. |
68c0566a375f
Documented njs global object in njs Refernce.
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parents:
2665
diff
changeset
|
843 </tag-desc> |
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Documented njs global object in njs Refernce.
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parents:
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diff
changeset
|
844 |
68c0566a375f
Documented njs global object in njs Refernce.
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parents:
2665
diff
changeset
|
845 <tag-name id="njs_on"><literal>njs.on</literal></tag-name> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
846 <tag-desc> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
847 Registers a callback for the specified VM event |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
848 (since <link doc="changes.xml" id="njs0.5.2">0.5.2</link>). |
68c0566a375f
Documented njs global object in njs Refernce.
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parents:
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diff
changeset
|
849 An event may be one of the following strings: |
68c0566a375f
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parents:
2665
diff
changeset
|
850 <list type="tag"> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
851 |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
852 <tag-name><literal>exit</literal></tag-name> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
853 <tag-desc> |
68c0566a375f
Documented njs global object in njs Refernce.
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parents:
2665
diff
changeset
|
854 is called before the VM is destroyed. |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
855 The callback is called without arguments. |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
856 </tag-desc> |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
857 |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
858 </list> |
68c0566a375f
Documented njs global object in njs Refernce.
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parents:
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diff
changeset
|
859 </tag-desc> |
68c0566a375f
Documented njs global object in njs Refernce.
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parents:
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diff
changeset
|
860 |
68c0566a375f
Documented njs global object in njs Refernce.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2665
diff
changeset
|
861 </list> |
68c0566a375f
Documented njs global object in njs Refernce.
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parents:
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diff
changeset
|
862 </para> |
68c0566a375f
Documented njs global object in njs Refernce.
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diff
changeset
|
863 |
68c0566a375f
Documented njs global object in njs Refernce.
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parents:
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diff
changeset
|
864 </section> |
68c0566a375f
Documented njs global object in njs Refernce.
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parents:
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diff
changeset
|
865 |
68c0566a375f
Documented njs global object in njs Refernce.
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parents:
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diff
changeset
|
866 |
2405
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
867 <section id="process" name="Process"> |
dbf68c949522
Documented the "process" global object.
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parents:
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diff
changeset
|
868 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
869 <para> |
dbf68c949522
Documented the "process" global object.
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parents:
2394
diff
changeset
|
870 The <literal>process</literal> object is a global object |
dbf68c949522
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parents:
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diff
changeset
|
871 that provides information about the current process |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
872 (<link doc="changes.xml" id="njs0.3.3">0.3.3</link>). |
dbf68c949522
Documented the "process" global object.
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parents:
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diff
changeset
|
873 </para> |
dbf68c949522
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parents:
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diff
changeset
|
874 |
dbf68c949522
Documented the "process" global object.
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parents:
2394
diff
changeset
|
875 <para> |
dbf68c949522
Documented the "process" global object.
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parents:
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diff
changeset
|
876 <list type="tag"> |
dbf68c949522
Documented the "process" global object.
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parents:
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diff
changeset
|
877 |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
878 <tag-name id="process_argv"><literal>process.argv</literal></tag-name> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
879 <tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
880 Returns an array that contains the command line arguments |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
881 passed when the current process was launched. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
882 </tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
883 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
884 <tag-name id="process_env"><literal>process.env</literal></tag-name> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
885 <tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
886 Returns an object containing the user environment. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
887 <note> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
888 By default, nginx removes all environment variables inherited |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
889 from its parent process except the TZ variable. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
890 Use the <link doc="../ngx_core_module.xml" id="env"/> directive |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
891 to preserve some of the inherited variables. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
892 </note> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
893 </tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
894 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
895 <tag-name id="process_pid"><literal>process.pid</literal></tag-name> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
896 <tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
897 Returns the PID of the current process. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
898 </tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
899 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
900 <tag-name id="process_ppid"><literal>process.ppid</literal></tag-name> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
901 <tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
902 Returns the PID of the current parent process. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
903 </tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
904 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
905 </list> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
906 </para> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
907 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
908 </section> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
909 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
910 </section> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
911 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
912 |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
913 <section id="string" name="String"> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
914 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
915 <para> |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
916 There are two types of strings in njs: a Unicode string (default) and |
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
917 a byte string. |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
918 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
919 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
920 <para> |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
921 A Unicode string corresponds to an ECMAScript string |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
922 which contains Unicode characters. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
923 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
924 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
925 <para> |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
926 Byte strings contain a sequence of bytes |
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
927 and are used to serialize Unicode strings |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
928 to external data and deserialize from external sources. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
929 For example, the <link id="string_toutf8">toUTF8()</link> method serializes |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
930 a Unicode string to a byte string using UTF8 encoding: |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
931 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
932 >> '£'.toUTF8().toString('hex') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
933 'c2a3' /* C2 A3 is the UTF8 representation of 00A3 ('£') code point */ |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
934 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
935 The <link id="string_tobytes">toBytes()</link> method serializes |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
936 a Unicode string with code points up to 255 into a byte string, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
937 otherwise, <literal>null</literal> is returned: |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
938 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
939 >> '£'.toBytes().toString('hex') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
940 'a3' /* a3 is a byte equal to 00A3 ('£') code point */ |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
941 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
942 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
943 <list type="tag"> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
944 |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
945 <tag-name id="string_bytesfrom"><literal>String.bytesFrom(<value>array</value> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
946 | <value>string</value>, <value>encoding</value>)</literal></tag-name> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
947 <tag-desc> |
2569
2edc64c05b0e
Removed ECMAScript methods from njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2564
diff
changeset
|
948 Creates a byte string either from an array that contains octets, |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
949 or from an encoded string |
2337
867fe207f13e
Updated links to changes.xml in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
950 (<link doc="changes.xml" id="njs0.2.3">0.2.3</link>). |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
951 The encoding can be |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
952 <literal>hex</literal>, |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
953 <literal>base64</literal>, and |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
954 <literal>base64url</literal>. |
2605
0ec1e1b063d7
Deprecated String.bytesFrom method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2604
diff
changeset
|
955 The method is deprecated since |
0ec1e1b063d7
Deprecated String.bytesFrom method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2604
diff
changeset
|
956 <link doc="changes.xml" id="njs0.4.4">0.4.4</link>, |
0ec1e1b063d7
Deprecated String.bytesFrom method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2604
diff
changeset
|
957 the <literal>Buffer.from</literal> method should be used instead: |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
958 <example> |
2605
0ec1e1b063d7
Deprecated String.bytesFrom method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2604
diff
changeset
|
959 >> Buffer.from([0x62, 0x75, 0x66, 0x66, 0x65, 0x72]).toString() |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
960 'buffer' |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
961 |
2605
0ec1e1b063d7
Deprecated String.bytesFrom method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2604
diff
changeset
|
962 >> Buffer.from('YnVmZmVy', 'base64').toString() |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
963 'buffer' |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
964 </example> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
965 </tag-desc> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
966 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
967 <tag-name id="string_frombytes"><literal>String.prototype.fromBytes(<value>start</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
968 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
969 <tag-desc> |
2569
2edc64c05b0e
Removed ECMAScript methods from njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2564
diff
changeset
|
970 Returns a new Unicode string from a byte string |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
971 where each byte is replaced with a corresponding Unicode code point. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
972 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
973 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
974 <tag-name id="string_fromutf8"><literal>String.prototype.fromUTF8(<value>start</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
975 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
976 <tag-desc> |
2569
2edc64c05b0e
Removed ECMAScript methods from njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2564
diff
changeset
|
977 Converts a byte string containing a valid UTF8 string |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
978 into a Unicode string, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
979 otherwise <literal>null</literal> is returned. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
980 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
981 |
2579
63cef7604e0d
Minor review of njs Reference for typos and style.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2578
diff
changeset
|
982 <tag-name id="string_tobytes"><literal>String.prototype.toBytes(<value>start</value>[, |
63cef7604e0d
Minor review of njs Reference for typos and style.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2578
diff
changeset
|
983 <value>end</value>])</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
984 <tag-desc> |
2569
2edc64c05b0e
Removed ECMAScript methods from njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2564
diff
changeset
|
985 Serializes a Unicode string to a byte string. |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
986 Returns <literal>null</literal> if a character larger than 255 is |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
987 found in the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
988 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
989 |
2582
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
990 <tag-name id="string_tostring"><literal>String.prototype.toString(<value>encoding</value>)</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
991 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
992 <para> |
2582
e162a71453b0
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993 Encodes a string to |
2186
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994 <literal>hex</literal>, |
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995 <literal>base64</literal>, or |
2582
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|
996 <literal>base64url</literal>: |
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|
997 <example> |
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998 >> 'αβγδ'.toString('base64url') |
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999 'zrHOss6zzrQ' |
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1000 </example> |
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1001 Before version <link doc="changes.xml" id="njs0.4.3">0.4.3</link>, |
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1002 only a <link id="string_tobytes">byte string</link> could be encoded: |
2186
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|
1003 <example> |
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diff
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|
1004 >> 'αβγδ'.toUTF8().toString('base64url') |
2214
e029f4bc7ede
Added quotes to njs examples.
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diff
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|
1005 'zrHOss6zzrQ' |
2186
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|
1006 </example> |
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1007 </para> |
2186
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|
1008 </tag-desc> |
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|
1009 |
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|
1010 <tag-name id="string_toutf8"><literal>String.prototype.toUTF8(<value>start</value>[, |
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|
1011 <value>end</value>])</literal></tag-name> |
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|
1012 <tag-desc> |
2569
2edc64c05b0e
Removed ECMAScript methods from njs Reference.
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parents:
2564
diff
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|
1013 Serializes a Unicode string |
2186
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1014 to a byte string using UTF8 encoding. |
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diff
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|
1015 <example> |
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|
1016 >> 'αβγδ'.toUTF8().length |
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|
1017 8 |
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|
1018 >> 'αβγδ'.length |
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|
1019 4 |
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|
1020 </example> |
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|
1021 </tag-desc> |
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|
1022 |
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|
1023 </list> |
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|
1024 </para> |
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|
1025 |
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diff
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|
1026 </section> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1027 |
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|
1028 |
2585
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|
1029 <section id="textdecoder" name="Text Decoder"> |
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|
1030 |
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|
1031 <para> |
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|
1032 The <literal>TextDecoder</literal> |
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|
1033 produces a stream of code points |
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|
1034 from a stream of bytes |
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|
1035 (<link doc="changes.xml" id="njs0.4.3">0.4.3</link>). |
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|
1036 </para> |
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|
1037 |
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|
1038 <para> |
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|
1039 <list type="tag"> |
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|
1040 |
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|
1041 <tag-name><literal>TextDecoder([[<value>encoding</value>], |
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|
1042 <value>options</value>])</literal></tag-name> |
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|
1043 <tag-desc> |
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|
1044 Creates a new <literal>TextDecoder</literal> object |
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|
1045 for specified <literal>encoding</literal>, |
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1046 currently, only UTF-8 is supported. |
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|
1047 The <literal>options</literal> is |
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|
1048 <literal>TextDecoderOptions</literal> dictionary with the property: |
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|
1049 |
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|
1050 <list type="tag"> |
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|
1051 |
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|
1052 <tag-name><literal>fatal</literal></tag-name> |
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|
1053 <tag-desc> |
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|
1054 boolean flag indicating if |
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|
1055 <link id="textdecoder_decode"><literal>TextDecoder.decode()</literal></link> |
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|
1056 must throw the <value>TypeError</value> exception when |
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parents:
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|
1057 a coding error is found, by default is <literal>false</literal>. |
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|
1058 </tag-desc> |
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|
1059 |
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|
1060 </list> |
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|
1061 </tag-desc> |
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|
1062 |
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|
1063 <tag-name id="textdecoder_encoding"><literal>TextDecoder.prototype.encoding</literal></tag-name> |
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|
1064 <tag-desc> |
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|
1065 Returns a string with the name of the encoding used by |
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|
1066 <link id="textdecoder"><literal>TextDecoder()</literal></link>, |
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|
1067 read-only. |
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|
1068 </tag-desc> |
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|
1069 |
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|
1070 <tag-name id="textdecoder_fatal"><literal>TextDecoder.prototype.fatal</literal></tag-name> |
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1071 <tag-desc> |
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|
1072 boolean flag, <literal>true</literal> if |
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1073 the error mode is fatal, |
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1074 read-only. |
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|
1075 </tag-desc> |
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|
1076 |
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|
1077 <tag-name id="textdecoder_ignorebom"><literal>TextDecoder.prototype.ignoreBOM</literal></tag-name> |
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1078 <tag-desc> |
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1079 boolean flag, <literal>true</literal> if |
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|
1080 the byte order marker is ignored, |
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|
1081 read-only. |
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1082 </tag-desc> |
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|
1083 |
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|
1084 <tag-name id="textdecoder_decode"><literal>TextDecoder.prototype.decode(<value>buffer</value>, |
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|
1085 [<value>options</value>])</literal></tag-name> |
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1086 <tag-desc> |
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1087 Returns a string with the text |
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1088 decoded from the <literal>buffer</literal> by |
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|
1089 <link id="textdecoder"><literal>TextDecoder()</literal></link>. |
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1090 The buffer can be <literal>ArrayBuffer</literal>. |
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|
1091 The <literal>options</literal> is |
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|
1092 <literal>TextDecodeOptions</literal> dictionary with the property: |
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|
1093 |
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|
1094 <list type="tag"> |
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|
1095 |
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|
1096 <tag-name><literal>stream</literal></tag-name> |
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1097 <tag-desc> |
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|
1098 boolean flag indicating if |
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|
1099 additional data will follow in subsequent calls to <literal>decode()</literal>: |
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|
1100 <literal>true</literal> if processing the data in chunks, and |
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1101 <literal>false</literal> for the final chunk |
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1102 or if the data is not chunked. |
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1103 By default is <literal>false</literal>. |
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1104 </tag-desc> |
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|
1105 |
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1106 </list> |
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|
1107 <example> |
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1108 >> (new TextDecoder()).decode(new Uint8Array([206,177,206,178])) |
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1109 αβ |
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1110 </example> |
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1111 </tag-desc> |
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1112 |
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1113 </list> |
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1114 </para> |
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1115 |
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1116 </section> |
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1117 |
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1118 |
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1119 <section id="textencoder" name="Text Encoder"> |
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1120 |
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1121 <para> |
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1122 The <literal>TextEncoder</literal> object |
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1123 produces a byte stream with UTF-8 encoding |
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1124 from a stream of code points |
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1125 (<link doc="changes.xml" id="njs0.4.3">0.4.3</link>). |
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1126 </para> |
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1127 |
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1128 <para> |
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1129 <list type="tag"> |
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1130 |
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1131 <tag-name><literal>TextEncoder()</literal></tag-name> |
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1132 <tag-desc> |
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1133 Returns a newly constructed <literal>TextEncoder</literal> |
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1134 that will generate a byte stream with UTF-8 encoding. |
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1135 </tag-desc> |
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1136 |
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1137 <tag-name id="textencoder_encode"><literal>TextEncoder.prototype.encode(<value>string</value>)</literal></tag-name> |
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1138 <tag-desc> |
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1139 Encodes <literal>string</literal> into a <literal>Uint8Array</literal> |
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1140 with UTF-8 encoded text. |
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1141 </tag-desc> |
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1142 |
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1143 <tag-name id="textencoder_encodeinto"><literal>TextEncoder.prototype.encodeInto(<value>string</value>, |
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1144 <value>uint8Array</value>)</literal></tag-name> |
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1145 <tag-desc> |
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1146 Encodes a <literal>string</literal> to UTF-8, |
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1147 puts the result into destination <literal>Uint8Array</literal>, and |
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1148 returns a dictionary object that shows the progress of the encoding. |
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1149 The dictionary object contains two members: |
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1150 |
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1151 <list type="tag"> |
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1152 |
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1153 <tag-name><literal>read</literal></tag-name> |
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1154 <tag-desc> |
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1155 the number of UTF-16 units of code from the source <literal>string</literal> |
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1156 converted to UTF-8 |
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1157 </tag-desc> |
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1158 |
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1159 <tag-name><literal>written</literal></tag-name> |
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1160 <tag-desc> |
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1161 the number of bytes modified in the destination <literal>Uint8Array</literal> |
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1162 </tag-desc> |
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1163 |
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1164 </list> |
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1165 </tag-desc> |
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1166 |
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1167 </list> |
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1168 </para> |
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1169 |
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1170 </section> |
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1171 |
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1172 |
2578
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1173 <section id="njs_api_timers" name="Timers"> |
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1174 |
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1175 <para> |
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1176 <list type="tag"> |
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1177 |
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1178 <tag-name id="cleartimeout"><literal>clearTimeout(<value>timeout</value>)</literal></tag-name> |
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1179 <tag-desc> |
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1180 Cancels a <literal>timeout</literal> object |
2579
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1181 created by <link id="settimeout"><literal>setTimeout()</literal></link>. |
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1182 </tag-desc> |
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|
1183 |
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1184 <tag-name id="settimeout"><literal>setTimeout(<value>function</value>, |
2579
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1185 <value>milliseconds</value>[, |
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1186 <value>argument1</value>, |
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1187 <value>argumentN</value>])</literal></tag-name> |
2578
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1188 <tag-desc> |
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1189 Calls a <literal>function</literal> |
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1190 after a specified number of <literal>milliseconds</literal>. |
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1191 One or more optional <literal>arguments</literal> |
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1192 can be passed to the specified function. |
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1193 Returns a <literal>timeout</literal> object. |
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1194 <example> |
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1195 function handler(v) |
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1196 { |
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1197 // ... |
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1198 } |
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1199 |
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1200 t = setTimeout(handler, 12); |
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1201 |
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1202 // ... |
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1203 |
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1204 clearTimeout(t); |
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1205 </example> |
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1206 </tag-desc> |
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1207 |
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1208 </list> |
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1209 </para> |
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1210 |
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1211 </section> |
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1212 |
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1213 </section> |
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1214 |
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1215 |
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1216 <section id="built-in" name="Built-in Modules"> |
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1217 |
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1218 |
2609
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1219 <section id="buffer" name="Buffer"> |
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1220 |
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1221 <para> |
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1222 <list type="tag"> |
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1223 |
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1224 <tag-name id="buffer_alloc"><literal>Buffer.alloc(<value>size</value>[, |
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1225 <value>fill</value>[, |
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1226 <value>encoding</value>]]))</literal></tag-name> |
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|
1227 <tag-desc> |
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diff
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|
1228 <para> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1229 Allocates a new Buffer of a specified <value>size</value>. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1230 If <value>fill</value> is not specified, the Buffer will be zero-filled. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1231 If <value>fill</value> is specified, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1232 the allocated Buffer will be initialized by calling |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1233 <link id="buf_fill"><literal>buf.fill(fill)</literal></link>. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1234 If <value>fill</value> and <value>encoding</value> are specified, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1235 the allocated Buffer will be initialized by calling |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1236 <link id="buf_fill"><literal>buf.fill(fill, |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1237 encoding)</literal></link>. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1238 </para> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1239 |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1240 <para> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1241 The <value>fill</value> parameter may be a |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1242 <value>string</value>, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1243 <value>Buffer</value>, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1244 <value>Uint8Array</value>, or |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1245 <value>integer</value>. |
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diff
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|
1246 </para> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1247 </tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1248 |
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Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
1249 <tag-name id="buffer_alloc_unsafe"><literal>Buffer.allocUnsafe(<value>size</value>)</literal></tag-name> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1250 <tag-desc> |
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|
1251 <para> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1252 The same as |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1253 <link id="buffer_alloc"><literal>Buffer.alloc()</literal></link>, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1254 with the difference that the memory allocated for the buffer is not initialized, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1255 the contents of the new buffer is unknown and may contain sensitive data. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1256 </para> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1257 </tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1258 |
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Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
1259 <tag-name id="buffer_bytelength"><literal>Buffer.byteLength(<value>value</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1260 <value>encoding</value>])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1261 <tag-desc> |
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parents:
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diff
changeset
|
1262 Returns the byte length of a specified value, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1263 when encoded using <value>encoding</value>. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1264 The value can be a |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1265 <literal>string</literal>, |
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Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1266 <literal>Buffer</literal>, |
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Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1267 <literal>TypedArray</literal>, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1268 <literal>DataView</literal>, or |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1269 <literal>ArrayBuffer</literal>. |
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parents:
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diff
changeset
|
1270 If the value is a <value>string</value>, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1271 the <literal>encoding</literal> parameter is its encoding, can be |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1272 <value>utf8</value>, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1273 <value>hex</value>, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1274 <value>base64</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1275 <value>base64url</value>; |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1276 by default is <value>utf8</value>. |
2609
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|
1277 </tag-desc> |
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Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1278 |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1279 <tag-name id="buffer_compare"><literal>Buffer.compare(<value>buffer1</value>, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1280 <value>buffer2</value>)</literal></tag-name> |
99bd2ae8d2be
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parents:
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changeset
|
1281 <tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1282 Compares <value>buffer1</value> with <value>buffer2</value> |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1283 when sorting arrays of Buffer instances. |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1284 Returns |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1285 <literal>0</literal> if |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1286 <value>buffer1</value> is the same as <value>buffer2</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1287 <literal>1</literal> if |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1288 <value>buffer2</value> should come before <value>buffer1</value> when sorted, or |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1289 <literal>-1</literal> if |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1290 <value>buffer2</value> should come after <value>buffer1</value> when sorted. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1291 </tag-desc> |
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parents:
2605
diff
changeset
|
1292 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1293 <tag-name id="buffer_concat"><literal>Buffer.concat(<value>list</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1294 <value>totalLength</value>])</literal></tag-name> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1295 <tag-desc> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1296 Returns a new Buffer |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1297 which is the result of concatenating all the Buffer instances in the list. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1298 If there are no items in the list or the total length is 0, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1299 a new zero-length Buffer is returned. |
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parents:
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|
1300 If <value>totalLength</value> is not specified, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1301 it is calculated from the Buffer instances in list by adding their lengths. |
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parents:
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diff
changeset
|
1302 If <value>totalLength</value> is specified, |
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parents:
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diff
changeset
|
1303 it is coerced to an unsigned integer. |
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parents:
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diff
changeset
|
1304 If the combined length of the Buffers in list exceeds |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1305 <value>totalLength</value>, |
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parents:
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diff
changeset
|
1306 the result is truncated to <value>totalLength</value>. |
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parents:
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changeset
|
1307 </tag-desc> |
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changeset
|
1308 |
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changeset
|
1309 <tag-name id="buffer_from_array"><literal>Buffer.from(<value>array</value>)</literal></tag-name> |
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|
1310 <tag-desc> |
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changeset
|
1311 Allocates a new Buffer using an array of bytes |
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|
1312 in the range <literal>0</literal> – <literal>255</literal>. |
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|
1313 Array entries outside that range will be truncated. |
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|
1314 </tag-desc> |
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|
1315 |
2612
6fdefb00858f
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changeset
|
1316 <tag-name id="buffer_from_arraybuffer"><literal>Buffer.from(<value>arrayBuffer</value>, |
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|
1317 <value>byteOffset</value>[, |
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|
1318 <value>length</value>]])</literal></tag-name> |
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|
1319 <tag-desc> |
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|
1320 Creates a view of the <value>ArrayBuffer</value> |
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changeset
|
1321 without copying the underlying memory. |
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Documented Buffer.from(arrayBuffer) method in njs.
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|
1322 The optional <value>byteOffset</value> and <value>length</value> arguments |
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|
1323 specify a memory range within the <value>arrayBuffer</value> |
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|
1324 that will be shared by the Buffer. |
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|
1325 </tag-desc> |
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|
1326 |
2609
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|
1327 <tag-name id="buffer_from_buffer"><literal>Buffer.from(<value>buffer</value>)</literal></tag-name> |
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changeset
|
1328 <tag-desc> |
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changeset
|
1329 Copies the passed buffer data onto a new Buffer instance. |
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|
1330 </tag-desc> |
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|
1331 |
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changeset
|
1332 <tag-name id="buffer_from_object"><literal>Buffer.from(<value>object</value>[, |
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changeset
|
1333 <value>offsetOrEncoding</value>[, |
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changeset
|
1334 <value>length</value>]])</literal></tag-name> |
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|
1335 <tag-desc> |
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changeset
|
1336 For objects whose <literal>valueOf()</literal> function |
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changeset
|
1337 returns a value not strictly equal to object, |
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|
1338 returns |
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parents:
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changeset
|
1339 <literal>Buffer.from(object.valueOf()</literal>, |
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parents:
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changeset
|
1340 <literal>offsetOrEncoding</literal>, |
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changeset
|
1341 <literal>length</literal>). |
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changeset
|
1342 </tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1343 |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1344 <tag-name id="buffer_from_string"><literal>Buffer.from(<value>string</value>[, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1345 <value>encoding</value>])</literal></tag-name> |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1346 <tag-desc> |
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parents:
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diff
changeset
|
1347 Creates a new Buffer with a <value>string</value>. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1348 The <value>encoding</value> parameter identifies the character encoding |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1349 to be used when converting a string into bytes. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1350 The encoding can be |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1351 <literal>utf8</literal>, |
2609
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1352 <literal>hex</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1353 <literal>base64</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
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|
1354 <literal>base64url</literal>; |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1355 by default is <literal>utf8</literal>. |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1356 </tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1357 |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1358 <tag-name id="buffer_is_buffer"><literal>Buffer.isBuffer(<value>object</value>)</literal></tag-name> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1359 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1360 A boolean value, |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1361 returns <literal>true</literal> if <value>object</value> is a Buffer. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1362 </tag-desc> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1363 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1364 <tag-name id="buffer_is_encoding"><literal>Buffer.isEncoding(<value>encoding</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1365 <tag-desc> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1366 A boolean value, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1367 returns <literal>true</literal> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1368 if encoding is the name of a supported character encoding. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
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|
1369 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1370 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1371 <tag-name id="buf_index"><literal>buffer[<value>index</value>]</literal></tag-name> |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1372 <tag-desc> |
2647
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Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1373 The index operator that can be used to get and set the octet |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1374 at position <literal>index</literal> in <literal>buffer</literal>. |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1375 The values refer to individual bytes, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1376 so the legal value range is between 0 and 255 (decimal). |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1377 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1378 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1379 <tag-name id="buf_buffer"><literal>buf.buffer</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1380 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1381 The underlying <literal>ArrayBuffer</literal> object |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1382 based on which this Buffer object is created. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1383 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1384 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1385 <tag-name id="buf_byte_offset"><literal>buf.byteOffset</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1386 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1387 An integer, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1388 specifying the <literal>byteOffset</literal> of the Buffers |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1389 underlying <literal>ArrayBuffer</literal> object. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1390 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1391 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1392 <tag-name id="buf_compare"><literal>buf.compare(<value>target</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1393 <value>targetStart</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1394 <value>targetEnd</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1395 <value>sourceStart</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1396 <value>sourceEnd</value>]]]])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1397 <tag-desc> |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1398 Compares buffer with <value>target</value> and returns a number |
2609
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1399 indicating whether buffer comes before, after, or is the same |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1400 as <value>target</value> in sort order. |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1401 Comparison is based on the actual sequence of bytes in each Buffer. |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1402 The <literal>targetStart</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1403 the offset within <value>target</value> at which to begin comparison, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1404 by default is 0. |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1405 The <literal>targetEnd</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1406 the offset within <value>target</value> at which to end comparison, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1407 by default is <literal>target.length</literal>. |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1408 The <literal>sourceStart</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1409 the offset within buffer at which to begin comparison, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1410 by default is 0. |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1411 The <literal>sourceEnd</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1412 the offset within buffer at which to end comparison (not inclusive), |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1413 by default is <literal>buf.length</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1414 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1415 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1416 <tag-name id="buf_copy"><literal>buf.copy(<value>target</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1417 <value>targetStart</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1418 <value>sourceStart</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1419 <value>sourceEnd</value>]]])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1420 <tag-desc> |
2647
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Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1421 Copies data from a region of buffer to a region in <value>target</value>, |
2609
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1422 even if the target memory region overlaps with buffer. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1423 The <literal>target</literal> parameter is a |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1424 <value>Buffer</value> or <value>Uint8Array</value> to copy into. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1425 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1426 <para> |
2647
0085d9f7dc3f
Minor corrections in njs reference.
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parents:
2631
diff
changeset
|
1427 The <literal>targetStart</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1428 the offset within target at which to begin writing, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1429 by default is 0. |
2647
0085d9f7dc3f
Minor corrections in njs reference.
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parents:
2631
diff
changeset
|
1430 The <literal>sourceStart</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1431 the offset within buffer from which to begin copying, |
2609
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1432 by default is 0. |
2647
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Minor corrections in njs reference.
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parents:
2631
diff
changeset
|
1433 The <literal>sourceEnd</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
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parents:
2631
diff
changeset
|
1434 the offset within buffer at which to stop copying (not inclusive) |
2609
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parents:
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diff
changeset
|
1435 by default is <value>buf.length</value>. |
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diff
changeset
|
1436 </para> |
99bd2ae8d2be
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parents:
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diff
changeset
|
1437 </tag-desc> |
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changeset
|
1438 |
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diff
changeset
|
1439 <tag-name id="buf_equals"><literal>buf.equals(<value>otherBuffer</value>)</literal></tag-name> |
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changeset
|
1440 <tag-desc> |
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diff
changeset
|
1441 A boolean value, |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1442 returns <literal>true</literal> if both Buffer and <value>otherBuffer</value> |
99bd2ae8d2be
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parents:
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diff
changeset
|
1443 have exactly the same bytes. |
99bd2ae8d2be
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parents:
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diff
changeset
|
1444 </tag-desc> |
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diff
changeset
|
1445 |
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diff
changeset
|
1446 <tag-name id="buf_fill"><literal>buf.fill(<value>value</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1447 <value>offset</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1448 <value>end</value>]][, |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1449 <value>encoding</value>])</literal></tag-name> |
99bd2ae8d2be
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parents:
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diff
changeset
|
1450 <tag-desc> |
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parents:
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diff
changeset
|
1451 Fills the Buffer with the specified <value>value</value>. |
99bd2ae8d2be
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parents:
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diff
changeset
|
1452 If the <value>offset</value> and <value>end</value> are not specified, |
99bd2ae8d2be
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parents:
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diff
changeset
|
1453 the entire Buffer will be filled. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1454 The <value>value</value> is coerced to <value>uint32</value> if it is not a |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1455 <literal>string</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1456 <literal>Buffer</literal>, or |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1457 <literal>integer</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1458 If the resulting integer is greater than 255, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1459 the Buffer will be filled with <value>value</value> and 255. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1460 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1461 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1462 <tag-name id="buf_includes"><literal>buf.includes(<value>value</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1463 <value>byteOffset</value>][, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1464 <value>encoding</value>])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1465 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1466 Equivalent to |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1467 <link id="buf_indexof"><literal>buf.indexOf()</literal></link> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1468 <literal>!== -1</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1469 returns <literal>true</literal> if the <value>value</value> was found |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1470 in Buffer. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1471 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1472 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1473 <tag-name id="buf_indexof"><literal>buf.indexOf(<value>value</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1474 <value>byteOffset</value>][, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1475 <value>encoding</value>])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1476 <tag-desc> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1477 Returns an integer which is the index of the first occurrence of |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1478 <value>value</value> in Buffer, or <value>-1</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1479 if Buffer does not contain value. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1480 The <value>value</value> can be a |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1481 <literal>string</literal> with specified <value>encoding</value> |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1482 (by default <value>utf8</value>), |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1483 <literal>Buffer</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1484 <literal>Unit8Array</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1485 or a number between 0 and 255. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1486 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1487 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1488 <tag-name id="buf_lastindexof"><literal>buf.lastIndexOf(<value>value</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1489 <value>byteOffset</value>][, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1490 <value>encoding</value>])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1491 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1492 The same as |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1493 <link id="buf_indexof"><literal>buf.indexOf()</literal></link>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1494 except the last occurrence of the <value>value</value> is found |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1495 instead of the first occurrence. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1496 The <value>value</value> can be a string, Buffer, or |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1497 integer between 1 and 255. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1498 If the <value>value</value> is an empty string or empty Buffer, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1499 <literal>byteOffset</literal> will be returned. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1500 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1501 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1502 <tag-name id="buf_length"><literal>buf.length</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1503 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1504 Returns the number of bytes in Buffer. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1505 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1506 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1507 <tag-name id="buf_readintbe"><literal>buf.readIntBE(<value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1508 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1509 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1510 Reads the <value>byteLength</value> from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1511 at the specified <value>offset</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1512 and interprets the result as a big-endian, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1513 two's complement signed value supporting up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1514 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1515 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1516 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1517 The similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1518 <literal>buf.readInt8([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1519 <literal>buf.readInt16BE([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1520 <literal>buf.readInt32BE([offset])</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1521 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1522 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1523 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1524 <tag-name id="buf_readintle"><literal>buf.readIntLE(<value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1525 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1526 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1527 Reads the <value>byteLength</value> from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1528 at the specified <value>offset</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1529 and interprets the result as a little-endian, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1530 two's complement signed value supporting up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1531 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1532 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1533 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1534 The similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1535 <literal>buf.readInt8([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1536 <literal>buf.readInt16LE([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1537 <literal>buf.readInt32LE([offset])</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1538 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1539 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1540 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1541 <tag-name id="buf_readuintbe"><literal>buf.readUIntBE(<value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1542 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1543 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1544 Reads the <value>byteLength</value> from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1545 at the specified <value>offset</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1546 and interprets the result as a big-endian |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1547 integer supporting up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1548 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1549 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1550 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1551 The similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1552 <literal>buf.readUInt8([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1553 <literal>buf.readUInt16BE([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1554 <literal>buf.readUInt32BE([offset])</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1555 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1556 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1557 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1558 <tag-name id="buf_readuintle"><literal>buf.readUIntLE(<value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1559 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1560 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1561 Reads the <value>byteLength</value> from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1562 at the specified <value>offset</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1563 and interprets the result as a little-endian |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1564 integer supporting up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1565 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1566 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1567 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1568 The similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1569 <literal>buf.readUInt8([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1570 <literal>buf.readUInt16LE([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1571 <literal>buf.readUInt32LE([offset])</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1572 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1573 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1574 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1575 <tag-name id="buf_readdobulebe"><literal>buf.readDoubleBE</literal>([<value>offset</value>])</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1576 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1577 Reads a 64-bit, big-endian double from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1578 at the specified <value>offset</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1579 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1580 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1581 <tag-name id="buf_readdobulele"><literal>buf.readDoubleLE</literal>([<value>offset</value>])</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1582 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1583 Reads a 64-bit, little-endian double from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1584 at the specified <value>offset</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1585 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1586 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1587 <tag-name id="buf_readfloatbe"><literal>buf.readFloatBE</literal>([<value>offset</value>])</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1588 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1589 Reads a 32-bit, big-endian float from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1590 at the specified <value>offset</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1591 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1592 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1593 <tag-name id="buf_readfloatle"><literal>buf.readFloatLE</literal>([<value>offset</value>])</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1594 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1595 Reads a 32-bit, little-endian float from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1596 at the specified <value>offset</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1597 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1598 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1599 <tag-name id="buf_subarray"><literal>buf.subarray[<value>start</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1600 <value>end</value>]])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1601 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1602 Returns a new <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1603 that references the same memory as the original, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1604 but offset and cropped by |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1605 <value>start</value> and <value>end</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1606 If <value>end</value> is greater than |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1607 <link id="buf_length"><literal>buf.length</literal></link>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1608 the same result as that of end equal to |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1609 <link id="buf_length"><literal>buf.length</literal></link> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1610 is returned. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1611 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1612 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1613 <tag-name id="buf_slice"><literal>buf.slice[<value>start</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1614 <value>end</value>]])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1615 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1616 Returns a new <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1617 that references the same memory as the original, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1618 but offset and cropped by the |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1619 <value>start</value> and <value>end</value> values. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1620 The method is not compatible with the |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1621 <literal>Uint8Array.prototype.slice()</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1622 which is a superclass of Buffer. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1623 To copy the slice, use |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1624 <literal>Uint8Array.prototype.slice()</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1625 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1626 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1627 <tag-name id="buf_swap16"><literal>buf.swap16</literal>()</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1628 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1629 Interprets <literal>buf</literal> as an array of unsigned 16-bit numbers |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1630 and swaps the byte order in-place. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1631 Throws an error if |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1632 <link id="buf_length"><literal>buf.length</literal></link> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1633 is not a multiple of 2. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1634 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1635 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1636 <tag-name id="buf_swap32"><literal>buf.swap32</literal>()</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1637 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1638 Interprets <literal>buf</literal> as an array of unsigned 32-bit numbers |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1639 and swaps the byte order in-place. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1640 Throws an error if |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1641 <link id="buf_length"><literal>buf.length</literal></link> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1642 is not a multiple of 4. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1643 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1644 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1645 <tag-name id="buf_swap64"><literal>buf.swap64</literal>()</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1646 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1647 Interprets <literal>buf</literal> as an array of 64-bit numbers |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1648 and swaps byte order in-place. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1649 Throws an error if |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1650 <link id="buf_length"><literal>buf.length</literal></link> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1651 is not a multiple of 8. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1652 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1653 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1654 <tag-name id="buf_tojson"><literal>buf.toJSON</literal>()</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1655 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1656 Returns a JSON representation of <literal>buf.</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1657 <literal>JSON.stringify()</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1658 implicitly calls this function when stringifying a Buffer instance. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1659 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1660 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1661 <tag-name id="buf_tostring"><literal>buf.toString([<value>encoding</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1662 <value>start</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1663 <value>end</value>]]])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1664 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1665 Decodes <literal>buf</literal> to a string |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1666 according to the specified character <value>encoding</value> |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1667 which can be <value>utf8</value>, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1668 <value>hex</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1669 <value>base64</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1670 <value>base64url</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1671 The <value>start</value> and <value>end</value> parameters |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1672 may be passed to decode only a subset of Buffer. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1673 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1674 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1675 <tag-name id="buf_write"><literal>buf.write(<value>string</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1676 <value>offset</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1677 <value>length</value>]][, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1678 <value>encoding</value>])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1679 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1680 Writes a <value>string</value> to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1681 at <value>offset</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1682 according to the character <value>encoding</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1683 The <value>length</value> parameter is the number of bytes to write. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1684 If Buffer did not contain enough space to fit the entire string, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1685 only part of string will be written, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1686 however, partially encoded characters will not be written. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1687 The <value>encoding</value> can be |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1688 <value>utf8</value>, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1689 <value>hex</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1690 <value>base64</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1691 <value>base64url</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1692 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1693 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1694 <tag-name id="buf_writeintbe"><literal>buf.writeIntBE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1695 <value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1696 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1697 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1698 Writes <value>byteLength</value> bytes of <value>value</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1699 to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1700 at the specified <value>offset</value> as big-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1701 Supports up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1702 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1703 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1704 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1705 The following similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1706 <literal>buf.writeInt8</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1707 <literal>buf.writeInt16BE</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1708 <literal>buf.writeInt32BE</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1709 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1710 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1711 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1712 <tag-name id="buf_writeintle"><literal>buf.writeIntLE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1713 <value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1714 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1715 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1716 Writes <value>byteLength</value> bytes of <value>value</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1717 to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1718 at the specified <value>offset</value> as little-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1719 Supports up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1720 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1721 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1722 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1723 The following similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1724 <literal>buf.writeInt8</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1725 <literal>buf.writeInt16LE</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1726 <literal>buf.writeInt32LE</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1727 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1728 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1729 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1730 <tag-name id="buf_writeuintbe"><literal>buf.writeUIntBE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1731 <value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1732 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1733 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1734 Writes <value>byteLength</value> bytes of <value>value</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1735 to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1736 at the specified <value>offset</value> as big-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1737 Supports up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1738 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1739 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1740 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1741 The following similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1742 <literal>buf.writeUInt8</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1743 <literal>buf.writeUInt16BE</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1744 <literal>buf.writeUInt32BE</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1745 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1746 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1747 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1748 <tag-name id="buf_writeuintle"><literal>buf.writeUIntLE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1749 <value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1750 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1751 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1752 Writes <value>byteLength</value> bytes of <value>value</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1753 to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1754 at the specified <value>offset</value> as little-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1755 Supports up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1756 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1757 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1758 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1759 The following similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1760 <literal>buf.writeUInt8</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1761 <literal>buf.writeUInt16LE</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1762 <literal>buf.writeUInt32LE</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1763 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1764 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1765 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1766 <tag-name id="buf_writedoublebe"><literal>buf.writeDoubleBE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1767 [<value>offset</value>])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1768 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1769 Writes the <value>value</value> to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1770 at the specified <value>offset</value> as big-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1771 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1772 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1773 <tag-name id="buf_writedoublele"><literal>buf.writeDoubleLE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1774 [<value>offset</value>])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1775 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1776 Writes the <value>value</value> to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1777 at the specified <value>offset</value> as little-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1778 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1779 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1780 <tag-name id="buf_writefloatbe"><literal>buf.writeFloatBE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1781 [<value>offset</value>])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1782 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1783 Writes the <value>value</value> to <literal>buf</literal> |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1784 at the specified <value>offset</value> as big-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1785 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1786 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1787 <tag-name id="buf_writefloatle"><literal>buf.writeFloatLE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1788 [<value>offset</value>])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1789 <tag-desc> |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1790 Writes the <value>value</value> to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1791 at the specified <value>offset</value> as little-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1792 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1793 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1794 </list> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1795 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1796 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1797 </section> |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1798 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1799 |
2177 | 1800 <section id="crypto" name="Crypto"> |
1801 | |
1802 <para> | |
1803 The Crypto module provides cryptographic functionality support. | |
1804 The Crypto module object is returned by <literal>require('crypto')</literal>. | |
1805 </para> | |
1806 | |
1807 <para> | |
1808 <list type="tag"> | |
1809 | |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
1810 <tag-name id="crypto_createhash"><literal>crypto.createHash(<value>algorithm</value>)</literal></tag-name> |
2177 | 1811 <tag-desc> |
1812 Creates and returns a <link id="crypto_hash">Hash</link> object | |
1813 that can be used to generate hash digests | |
1814 using the given <value>algorithm</value>. | |
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1815 The algorithm can be |
2177 | 1816 <literal>md5</literal>, |
1817 <literal>sha1</literal>, and | |
1818 <literal>sha256</literal>. | |
1819 </tag-desc> | |
1820 | |
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1821 <tag-name id="crypto_createhmac"><literal>crypto.createHmac(<value>algorithm</value>, |
2177 | 1822 <value>secret key</value>)</literal></tag-name> |
1823 <tag-desc> | |
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1824 Creates and returns an <link id="crypto_hmac">HMAC</link> object that uses |
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1825 the given <value>algorithm</value> and <value>secret key</value>. |
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1826 The algorithm can be |
2177 | 1827 <literal>md5</literal>, |
1828 <literal>sha1</literal>, and | |
1829 <literal>sha256</literal>. | |
1830 </tag-desc> | |
1831 | |
1832 </list> | |
1833 </para> | |
1834 | |
1835 | |
1836 <section id="crypto_hash" name="Hash"> | |
1837 | |
1838 <para> | |
1839 <list type="tag"> | |
1840 | |
2601 | 1841 <tag-name id="crypto_hash_update"><literal>hash.update(<value>data</value>)</literal></tag-name> |
2177 | 1842 <tag-desc> |
1843 Updates the hash content with the given <value>data</value>. | |
1844 </tag-desc> | |
1845 | |
2601 | 1846 <tag-name id="crypto_hash_digest"><literal>hash.digest([<value>encoding</value>])</literal></tag-name> |
2177 | 1847 <tag-desc> |
1848 Calculates the digest of all of the data passed using | |
1849 <literal>hash.update()</literal>. | |
1850 The encoding can be | |
1851 <literal>hex</literal>, | |
1852 <literal>base64</literal>, and | |
1853 <literal>base64url</literal>. | |
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1854 If encoding is not provided, a Buffer object |
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1855 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>) is returned. |
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1856 <note> |
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1857 Before version (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>), |
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1858 a byte string was returned instead of a Buffer object. |
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1859 </note> |
2177 | 1860 </tag-desc> |
1861 | |
1862 </list> | |
1863 </para> | |
1864 | |
1865 <para> | |
1866 <example> | |
1867 >> var cr = require('crypto') | |
1868 undefined | |
1869 | |
1870 >> cr.createHash('sha1').update('A').update('B').digest('base64url') | |
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1871 'BtlFlCqiamG-GMPiK_GbvKjdK10' |
2177 | 1872 </example> |
1873 </para> | |
1874 | |
1875 </section> | |
1876 | |
1877 | |
1878 <section id="crypto_hmac" name="HMAC"> | |
1879 | |
1880 <para> | |
1881 <list type="tag"> | |
1882 | |
2601 | 1883 <tag-name id="crypto_hmac_update"><literal>hmac.update(<value>data</value>)</literal></tag-name> |
2177 | 1884 <tag-desc> |
1885 Updates the HMAC content with the given <value>data</value>. | |
1886 </tag-desc> | |
1887 | |
2601 | 1888 <tag-name id="crypto_hmac_digest"><literal>hmac.digest([<value>encoding</value>])</literal></tag-name> |
2177 | 1889 <tag-desc> |
1890 Calculates the HMAC digest of all of the data passed using | |
1891 <literal>hmac.update()</literal>. | |
1892 The encoding can be | |
1893 <literal>hex</literal>, | |
1894 <literal>base64</literal>, and | |
1895 <literal>base64url</literal>. | |
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1896 If encoding is not provided, a Buffer object |
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1897 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>) is returned. |
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1898 <note> |
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1899 Before version <link doc="changes.xml" id="njs0.4.4">0.4.4</link>, |
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1900 a byte string was returned instead of a Buffer object. |
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1901 </note> |
2177 | 1902 </tag-desc> |
1903 </list> | |
1904 </para> | |
1905 | |
1906 <para> | |
1907 <example> | |
1908 >> var cr = require('crypto') | |
1909 undefined | |
1910 | |
1911 >> cr.createHmac('sha1', 'secret.key').update('AB').digest('base64url') | |
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1912 'Oglm93xn23_MkiaEq_e9u8zk374' |
2177 | 1913 </example> |
1914 </para> | |
1915 | |
1916 </section> | |
1917 | |
1918 </section> | |
1919 | |
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1920 |
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1921 <section id="njs_api_fs" name="File System"> |
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1922 |
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1923 <para> |
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1924 The File System module provides operations with files. |
2507 | 1925 </para> |
1926 | |
1927 <para> | |
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1928 The module object is returned by <literal>require('fs')</literal>. |
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1929 Since <link doc="changes.xml" id="njs0.3.9">0.3.9</link>, |
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1930 promissified versions of file system methods are available through |
2507 | 1931 <literal>require('fs').promises</literal> object: |
1932 <example> | |
1933 > var fs = require('fs').promises; | |
1934 undefined | |
1935 > fs.readFile("/file/path").then((data)=>console.log(data)) | |
1936 <file data> | |
1937 </example> | |
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1938 <list type="tag"> |
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1939 |
2507 | 1940 <tag-name id="fs_accesssync"><literal>accessSync(<value>path</value>[, |
1941 <value>mode</value>])</literal></tag-name> | |
1942 <tag-desc> | |
1943 Synchronously tests permissions for a file or directory | |
1944 specified in the <literal>path</literal> | |
1945 (<link doc="changes.xml" id="njs0.3.9">0.3.9</link>). | |
1946 If the check fails, an error will be returned, | |
1947 otherwise, the method will return undefined. | |
1948 <list type="tag"> | |
1949 | |
1950 <tag-name><literal>mode</literal></tag-name> | |
1951 <tag-desc> | |
1952 by default is <link id="access_const"><literal>fs.constants.F_OK</literal></link>. | |
1953 The mode argument is an optional integer | |
1954 that specifies the accessibility checks to be performed. | |
1955 <example> | |
1956 try { | |
1957 fs.accessSync('/file/path', fs.constants.R_OK | fs.constants.W_OK); | |
1958 console.log('has access'); | |
1959 } catch (e) { | |
1960 console.log('no access');) | |
1961 } | |
1962 </example> | |
1963 </tag-desc> | |
1964 | |
1965 </list> | |
1966 </tag-desc> | |
1967 | |
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1968 <tag-name id="fs_appendfilesync"><literal>appendFileSync(<value>filename</value>, |
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1969 <value>data</value>[, <value>options</value>])</literal></tag-name> |
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1970 <tag-desc> |
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1971 Synchronously appends specified <literal>data</literal> |
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1972 to a file with provided <literal>filename</literal>. |
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1973 The <literal>data</literal> is expected to be a string |
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1974 or a Buffer object (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>). |
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1975 If the file does not exist, it will be created. |
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1976 The <literal>options</literal> parameter is expected to be |
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1977 an object with the following keys: |
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1978 <list type="tag"> |
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1979 |
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1980 <tag-name><literal>mode</literal></tag-name> |
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1981 <tag-desc> |
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1982 mode option, by default is <literal>0o666</literal> |
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1983 </tag-desc> |
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1984 |
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1985 <tag-name><literal>flag</literal></tag-name> |
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1986 <tag-desc> |
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1987 file system <link id="njs_api_fs_flags">flag</link>, |
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1988 by default is <literal>a</literal> |
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1989 </tag-desc> |
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1990 |
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1991 </list> |
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1992 </tag-desc> |
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1993 |
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1994 <tag-name id="fs_mkdirsync"><literal>mkdirSync(<value>path</value>[, |
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1995 <value>options</value>])</literal></tag-name> |
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1996 <tag-desc> |
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1997 Synchronously creates a directory at the specified <literal>path</literal> |
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1998 (<link doc="changes.xml" id="njs0.4.2">0.4.2</link>). |
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1999 The <literal>options</literal> parameter is expected to be an |
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2000 <literal>integer</literal> that specifies |
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2001 the <link id="fs_mkdirsync_mode">mode</link>, |
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2002 or an object with the following keys: |
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2003 <list type="tag"> |
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2004 |
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2005 <tag-name id="fs_mkdirsync_mode"><literal>mode</literal></tag-name> |
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2006 <tag-desc> |
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2007 mode option, by default is <literal>0o777</literal>. |
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2008 </tag-desc> |
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2009 |
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2010 </list> |
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2011 </tag-desc> |
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2012 |
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2013 <tag-name id="fs_readdirsync"><literal>readdirSync(<value>path</value>[, |
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2014 <value>options</value>])</literal></tag-name> |
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2015 <tag-desc> |
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2016 Synchronously reads the contents of a directory |
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2017 at the specified <literal>path</literal> |
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2018 (<link doc="changes.xml" id="njs0.4.2">0.4.2</link>). |
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2019 The <literal>options</literal> parameter is expected to be |
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2020 a string that specifies <link id="fs_readdirsync_encoding">encoding</link> |
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2021 or an object with the following keys: |
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|
2022 <list type="tag"> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2023 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2024 <tag-name id="fs_readdirsync_encoding"><literal>encoding</literal></tag-name> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2025 <tag-desc> |
2604
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2026 encoding, by default is <literal>utf8</literal>. |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2027 The encoding can be <literal>utf8</literal> and <literal>buffer</literal> |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2028 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>). |
2563
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2029 </tag-desc> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2030 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2031 <tag-name id="fs_readdirsync_withfiletypes"><literal>withFileTypes</literal></tag-name> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2032 <tag-desc> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2033 if set to <literal>true</literal>, the files array will contain |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2034 <link id="fs_dirent"><literal>fs.Dirent</literal></link> objects, |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2035 by default is <literal>false</literal>. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2036 </tag-desc> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2037 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2038 </list> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2039 </tag-desc> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2040 |
2570
44792f1ee284
Added IDs to methods in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2569
diff
changeset
|
2041 <tag-name id="fs_readfilesync"><literal>readFileSync(<value>filename</value>[, |
2204
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2042 <value>options</value>])</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2043 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2044 Synchronously returns the contents of the file |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2045 with provided <literal>filename</literal>. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2046 The <literal>options</literal> parameter holds |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2047 <literal>string</literal> that specifies encoding. |
2604
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2048 If an encoding is specified, a string is returned, |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2049 otherwise, a Buffer object |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2050 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>) is returned. |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2051 <note> |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2052 Before version <link doc="changes.xml" id="njs0.4.4">0.4.4</link>, |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2053 a <link id="string_tobytes">byte string</link> was returned |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2054 if encoding was not specified. |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2055 </note> |
2204
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2056 Otherwise, <literal>options</literal> is expected to be |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2057 an object with the following keys: |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2058 <list type="tag"> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2059 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2060 <tag-name><literal>encoding</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2061 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2062 encoding, by default is not specified. |
2604
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2063 The encoding can be <literal>utf8</literal>, |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2064 <literal>hex</literal> |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2065 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>), |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2066 <literal>base64</literal> |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2067 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>), |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2068 <literal>base64url</literal> |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2069 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>). |
2204
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2070 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2071 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2072 <tag-name><literal>flag</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2073 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2074 file system <link id="njs_api_fs_flags">flag</link>, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2075 by default is <literal>r</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2076 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2077 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2078 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2079 <example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2080 >> var fs = require('fs') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2081 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2082 >> var file = fs.readFileSync('/file/path.tar.gz') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2083 undefined |
2604
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2084 >> var gzipped = file.slice(0,2).toString('hex') === '1f8b'; gzipped |
2204
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2085 true |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2086 </example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2087 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2088 |
2507 | 2089 <tag-name id="fs_realpathsync"><literal>realpathSync(<value>path</value>[, |
2090 <value>options</value>])</literal></tag-name> | |
2091 <tag-desc> | |
2092 Synchronously computes the canonical pathname by resolving | |
2093 <literal>.</literal>, <literal>..</literal> and symbolic links using | |
2508
d3d5b67a1462
Language fixes in njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2507
diff
changeset
|
2094 <link url="http://man7.org/linux/man-pages/man3/realpath.3.html">realpath(3)</link>. |
2507 | 2095 The <literal>options</literal> argument can be a string specifying an encoding, |
2096 or an object with an encoding property specifying the character encoding | |
2097 to use for the path passed to the callback | |
2098 (<link doc="changes.xml" id="njs0.3.9">0.3.9</link>). | |
2099 </tag-desc> | |
2100 | |
2509
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2101 <tag-name id="fs_renamesync"><literal>renameSync(<value>oldPath</value>, |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2102 <value>newPath</value>)</literal></tag-name> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2103 <tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2104 Synchronously changes the name or location of a file from |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2105 <literal>oldPath</literal> to <literal>newPath</literal> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2106 (<link doc="changes.xml" id="njs0.3.4">0.3.4</link>). |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2107 <example> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2108 >> var fs = require('fs') |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2109 undefined |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2110 >> var file = fs.renameSync('hello.txt', 'HelloWorld.txt') |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2111 undefined |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2112 </example> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2113 </tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2114 |
2563
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2115 <tag-name id="fs_rmdirsync"><literal>rmdirSync(<value>path</value>)</literal></tag-name> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2116 <tag-desc> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2117 Synchronously removes a directory at the specified <literal>path</literal> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2118 (<link doc="changes.xml" id="njs0.4.2">0.4.2</link>). |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2119 </tag-desc> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2120 |
2509
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2121 <tag-name id="fs_symlinksync"><literal>symlinkSync(<value>target</value>, |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2122 <value>path</value>)</literal></tag-name> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2123 <tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
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2508
diff
changeset
|
2124 Synchronously creates the link called <literal>path</literal> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2125 pointing to <literal>target</literal> using |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2126 <link url="http://man7.org/linux/man-pages/man2/symlink.2.html">symlink(2)</link> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2127 (<link doc="changes.xml" id="njs0.3.9">0.3.9</link>). |
827a6d7fe108
Reordered alphabetically njs file system methods.
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diff
changeset
|
2128 Relative targets are relative to the link’s parent directory. |
827a6d7fe108
Reordered alphabetically njs file system methods.
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parents:
2508
diff
changeset
|
2129 </tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2130 |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2131 <tag-name id="fs_unlinksync"><literal>unlinkSync(<value>path</value>)</literal></tag-name> |
827a6d7fe108
Reordered alphabetically njs file system methods.
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diff
changeset
|
2132 <tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
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diff
changeset
|
2133 Synchronously unlinks a file by <literal>path</literal> |
827a6d7fe108
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diff
changeset
|
2134 (<link doc="changes.xml" id="njs0.3.9">0.3.9</link>). |
827a6d7fe108
Reordered alphabetically njs file system methods.
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|
2135 </tag-desc> |
827a6d7fe108
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diff
changeset
|
2136 |
2570
44792f1ee284
Added IDs to methods in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2569
diff
changeset
|
2137 <tag-name id="fs_writefilesync"><literal>writeFileSync(<value>filename</value>, |
2204
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
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diff
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|
2138 <value>data</value>[, |
001f2d905fd9
Documented fileSystem methods in njs.
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diff
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|
2139 <value>options</value>])</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2140 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
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diff
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|
2141 Synchronously writes <literal>data</literal> to a file |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2142 with provided <literal>filename</literal>. |
2604
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
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|
2143 The <literal>data</literal> is expected to be a string |
a29676472a11
Added Buffer object info to some njs methods.
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parents:
2601
diff
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|
2144 or a Buffer object (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>). |
2204
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
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diff
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|
2145 If the file does not exist, it will be created, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2146 if the file exists, it will be replaced. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2147 The <literal>options</literal> parameter is expected to be |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2148 an object with the following keys: |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2149 <list type="tag"> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2150 <tag-name><literal>mode</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2151 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
2203
diff
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|
2152 mode option, by default is <literal>0o666</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2153 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2154 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2155 <tag-name><literal>flag</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2156 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
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diff
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|
2157 file system <link id="njs_api_fs_flags">flag</link>, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2158 by default is <literal>w</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2159 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2160 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2161 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2162 <example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2163 >> var fs = require('fs') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2164 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2165 >> var file = fs.writeFileSync('hello.txt', 'Hello world') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2166 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2167 </example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2168 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2169 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2170 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2171 </para> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2172 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2173 |
2563
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2174 <section id="fs_dirent" name="fs.Dirent"> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2175 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2176 <para> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2177 <literal>fs.Dirent</literal> is a representation of a directory entry— |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2178 a file or a subdirectory. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2179 When |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2180 <link id="fs_readdirsync"><literal>readdirSync()</literal></link> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2181 is called with the |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2182 <link id="fs_readdirsync_withfiletypes"><literal>withFileTypes</literal></link> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2183 option, |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2184 the resulting array contains <literal>fs.Dirent</literal> objects. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2185 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2186 <list type= "bullet" compact="no"> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2187 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2188 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2189 <literal>dirent.isBlockDevice()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2190 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2191 a block device. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2192 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2193 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2194 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2195 <literal>dirent.isCharacterDevice()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2196 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2197 a character device. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2198 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2199 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2200 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2201 <literal>dirent.isDirectory()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2202 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2203 a file system directory. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2204 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2205 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2206 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2207 <literal>dirent.isFIFO()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2208 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2209 a first-in-first-out (FIFO) pipe. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2210 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2211 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2212 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2213 <literal>dirent.isFile()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2214 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2215 a regular file. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2216 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
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|
2217 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2218 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2219 <literal>dirent.isSocket()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2220 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2221 a socket. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
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|
2222 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2223 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2224 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2225 <literal>dirent.isSymbolicLink()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
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|
2226 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
2546
diff
changeset
|
2227 a symbolic link. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2228 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2229 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2230 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
2546
diff
changeset
|
2231 <literal>dirent.name</literal>— |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2232 the name of the file <literal>fs.Dirent</literal> object refers to. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2233 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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2546
diff
changeset
|
2234 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2235 </list> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
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diff
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|
2236 </para> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
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diff
changeset
|
2237 |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
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diff
changeset
|
2238 </section> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
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|
2239 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
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diff
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|
2240 |
2507 | 2241 <section id="access_const" name="File Access Constants"> |
2242 | |
2243 <para> | |
2244 The <link id="fs_accesssync"><literal>access()</literal></link> method | |
2245 can accept the following flags. | |
2246 These flags are exported by <literal>fs.constants</literal>: | |
2247 | |
2248 <list type= "bullet" compact="no"> | |
2249 | |
2250 <listitem> | |
2251 <literal>F_OK</literal>—indicates that the file | |
2252 is visible to the calling process, | |
2253 used by default if no mode is specified | |
2254 </listitem> | |
2255 | |
2256 <listitem> | |
2257 <literal>R_OK</literal>—indicates that the file can be | |
2258 read by the calling process | |
2259 </listitem> | |
2260 | |
2261 <listitem> | |
2262 <literal>W_OK</literal>—indicates that the file can be | |
2263 written by the calling process | |
2264 </listitem> | |
2265 | |
2266 <listitem> | |
2267 <literal>X_OK</literal>—indicates that the file can be | |
2268 executed by the calling process | |
2269 </listitem> | |
2270 | |
2271 </list> | |
2272 </para> | |
2273 | |
2274 </section> | |
2275 | |
2276 | |
2204
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|
2277 <section id="njs_api_fs_flags" name="File System Flags"> |
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Documented fileSystem methods in njs.
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|
2278 |
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|
2279 <para> |
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Documented fileSystem methods in njs.
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|
2280 The <literal>flag</literal> option can accept the following values: |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2281 |
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diff
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|
2282 <list type= "bullet" compact="no"> |
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Documented fileSystem methods in njs.
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|
2283 |
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|
2284 <listitem> |
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|
2285 <literal>a</literal>—open a file for appending. |
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|
2286 The file is created if it does not exist |
001f2d905fd9
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|
2287 </listitem> |
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Documented fileSystem methods in njs.
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|
2288 |
001f2d905fd9
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|
2289 <listitem> |
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|
2290 <literal>ax</literal>—the same as <literal>a</literal> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2291 but fails if the file already exists |
001f2d905fd9
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|
2292 </listitem> |
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|
2293 |
001f2d905fd9
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|
2294 <listitem> |
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|
2295 <literal>a+</literal>—open a file for reading and appending. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2296 If the file does not exist, it will be created |
001f2d905fd9
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|
2297 </listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2298 |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2299 <listitem> |
2579
63cef7604e0d
Minor review of njs Reference for typos and style.
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2578
diff
changeset
|
2300 <literal>ax+</literal>—the same as <literal>a+</literal> |
2204
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2301 but fails if the file already exists |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2302 </listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2303 |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2304 <listitem> |
2579
63cef7604e0d
Minor review of njs Reference for typos and style.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2578
diff
changeset
|
2305 <literal>as</literal>—open a file for appending |
63cef7604e0d
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2306 in synchronous mode. |
2204
001f2d905fd9
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|
2307 If the file does not exist, it will be created |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2308 </listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2309 |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2310 <listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2311 <literal>as+</literal>—open a file for reading and appending |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2312 in synchronous mode. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2313 If the file does not exist, it will be created |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2314 </listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2315 |
001f2d905fd9
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|
2316 <listitem> |
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Documented fileSystem methods in njs.
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|
2317 <literal>r</literal>—open a file for reading. |
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Documented fileSystem methods in njs.
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parents:
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|
2318 An exception occurs if the file does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2319 </listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2320 |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2321 <listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2322 <literal>r+</literal>—open a file for reading and writing. |
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|
2323 An exception occurs if the file does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2324 </listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2325 |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2326 <listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2327 <literal>rs+</literal>—open a file for reading and writing |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2328 in synchronous mode. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2329 Instructs the operating system to bypass the local file system cache |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2330 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2331 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2332 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2333 <literal>w</literal>—open a file for writing. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2334 If the file does not exist, it will be created. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2335 If the file exists, it will be replaced |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2336 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2337 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
2338 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2339 <literal>wx</literal>—the same as <literal>w</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2340 but fails if the file already exists |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2341 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2342 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2343 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2344 <literal>w+</literal>—open a file for reading and writing. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2345 If the file does not exist, it will be created. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2346 If the file exists, it will be replaced |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2347 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2348 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2349 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2350 <literal>wx+</literal>—the same as <literal>w+</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2351 but fails if the file already exists |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2352 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2353 |
001f2d905fd9
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2354 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2355 </para> |
001f2d905fd9
Documented fileSystem methods in njs.
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diff
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|
2356 |
001f2d905fd9
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diff
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|
2357 </section> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2358 |
001f2d905fd9
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diff
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|
2359 </section> |
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|
2360 |
2583
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
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2582
diff
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|
2361 |
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|
2362 <section id="querystring" name="Query String"> |
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|
2363 |
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diff
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|
2364 <para> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2365 The Query String module provides support |
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diff
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|
2366 for parsing and formatting URL query strings |
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|
2367 (<link doc="changes.xml" id="njs0.4.3">0.4.3</link>). |
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|
2368 The Query String module object is returned by |
cd97adddd757
Documented Query String in njs Reference.
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|
2369 <literal>require('querystring')</literal>. |
cd97adddd757
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diff
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|
2370 </para> |
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|
2371 |
cd97adddd757
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|
2372 <para> |
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|
2373 <list type="tag"> |
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|
2374 |
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|
2375 <tag-name id="querystring_decode"><literal>querystring.decode()</literal></tag-name> |
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|
2376 <tag-desc> |
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|
2377 is an alias for |
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|
2378 <link id="querystring_parse"><literal>querystring.parse()</literal></link>. |
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|
2379 </tag-desc> |
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|
2380 |
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|
2381 <tag-name id="querystring_encode"><literal>querystring.encode()</literal></tag-name> |
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|
2382 <tag-desc> |
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|
2383 is an alias for |
cd97adddd757
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|
2384 <link id="querystring_stringify"><literal>querystring.stringify()</literal></link>. |
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|
2385 </tag-desc> |
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|
2386 |
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|
2387 <tag-name id="querystring_escape"><literal>querystring.escape(<value>string</value>)</literal></tag-name> |
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|
2388 <tag-desc> |
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|
2389 <para> |
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|
2390 Performs URL encoding of the given <literal>string</literal>, |
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|
2391 returns an escaped query string. |
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|
2392 The method is used by |
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|
2393 <link id="querystring_stringify"><literal>querystring.stringify()</literal></link> |
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|
2394 and should not be used directly. |
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|
2395 </para> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2396 </tag-desc> |
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|
2397 |
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2398 <tag-name id="querystring_parse"><literal>querystring.parse(<value>string</value>[, |
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|
2399 <value>separator</value>[, |
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|
2400 <value>equal</value>[, |
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|
2401 <value>options</value>]]])</literal></tag-name> |
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|
2402 <tag-desc> |
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|
2403 <para> |
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2404 Parses the query string URL and returns an object. |
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2405 </para> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2406 |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2407 <para> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2408 The <literal>separator</literal> parameter is a substring |
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|
2409 for delimiting key and value pairs in the query string, |
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|
2410 by default is “<literal>&</literal>”. |
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2411 </para> |
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|
2412 |
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|
2413 <para> |
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|
2414 The <literal>equal</literal> parameter is a substring |
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|
2415 for delimiting keys and values in the query string, |
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|
2416 by default is “<literal>=</literal>”. |
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|
2417 </para> |
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|
2418 |
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|
2419 <para> |
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2420 The <literal>options</literal> parameter is expected to be |
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2421 an object with the following keys: |
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2422 <list type="tag"> |
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2423 <tag-name><literal>decodeURIComponent</literal> |
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2424 <value>function</value></tag-name> |
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2425 <tag-desc> |
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|
2426 Function used |
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|
2427 to decode percent-encoded characters in the query string, |
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|
2428 by default is |
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|
2429 <link id="querystring_unescape"><literal>querystring.unescape()</literal></link> |
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2430 </tag-desc> |
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|
2431 |
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|
2432 <tag-name><literal>maxKeys</literal> |
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2433 <value>number</value></tag-name> |
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2434 <tag-desc> |
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2435 the maximum number of keys to parse, |
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2436 by default is <literal>1000</literal>. |
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2437 The <literal>0</literal> value removes limitations for counting keys. |
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2438 </tag-desc> |
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|
2439 |
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|
2440 </list> |
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|
2441 By default, percent-encoded characters within the query string are assumed |
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2442 to use the UTF-8 encoding, |
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|
2443 invalid UTF-8 sequences will be replaced with |
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2444 the <literal>U+FFFD</literal> replacement character. |
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|
2445 </para> |
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|
2446 |
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|
2447 <para> |
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|
2448 For example, for the following query string |
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|
2449 <example> |
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|
2450 'foo=bar&abc=xyz&abc=123' |
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|
2451 </example> |
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|
2452 the output will be: |
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|
2453 <example> |
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|
2454 { |
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|
2455 foo: 'bar', |
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2456 abc: ['xyz', '123'] |
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|
2457 } |
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|
2458 </example> |
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|
2459 </para> |
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|
2460 |
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|
2461 </tag-desc> |
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|
2462 |
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|
2463 <tag-name id="querystring_stringify"><literal>querystring.stringify(<value>object</value>[, |
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|
2464 <value>separator</value>[, |
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|
2465 <value>equal</value>[, |
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|
2466 <value>options</value>]]])</literal></tag-name> |
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|
2467 <tag-desc> |
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|
2468 <para> |
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2469 Serializes an object and returns a URL query string. |
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2470 </para> |
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|
2471 |
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|
2472 <para> |
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|
2473 The <literal>separator</literal> parameter is a substring |
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|
2474 for delimiting key and value pairs in the query string, |
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|
2475 by default is “<literal>&</literal>”. |
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|
2476 </para> |
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|
2477 |
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|
2478 <para> |
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|
2479 The <literal>equal</literal> parameter is a substring |
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|
2480 for delimiting keys and values in the query string, |
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|
2481 by default is “<literal>=</literal>”. |
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|
2482 </para> |
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|
2483 |
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|
2484 <para> |
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|
2485 The <literal>options</literal> parameter is expected to be |
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|
2486 an object with the following keys: |
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|
2487 <list type="tag"> |
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2488 <tag-name><literal>encodeURIComponent</literal> |
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|
2489 <value>function</value></tag-name> |
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2490 <tag-desc> |
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2491 The function to use when converting |
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|
2492 URL-unsafe characters to percent-encoding in the query string, |
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|
2493 by default is |
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|
2494 <link id="querystring_escape"><literal>querystring.escape()</literal></link>. |
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|
2495 </tag-desc> |
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|
2496 |
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|
2497 </list> |
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|
2498 </para> |
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|
2499 |
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|
2500 <para> |
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|
2501 By default, characters that require percent-encoding within the query string |
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2502 are encoded as UTF-8. |
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|
2503 If other encoding is required, then |
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|
2504 <literal>encodeURIComponent</literal> option should be specified. |
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|
2505 </para> |
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|
2506 |
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|
2507 <para> |
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|
2508 For example, for the following command |
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|
2509 <example> |
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|
2510 querystring.stringify({ foo: 'bar', baz: ['qux', 'quux'], 123: '' }); |
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|
2511 </example> |
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|
2512 the query string will be: |
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2513 <example> |
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2514 'foo=bar&baz=qux&baz=quux&123=' |
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Yaroslav Zhuravlev <yar@nginx.com>
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2515 </example> |
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Yaroslav Zhuravlev <yar@nginx.com>
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2516 </para> |
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2517 |
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2518 </tag-desc> |
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2519 |
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2520 <tag-name id="querystring_unescape"><literal>querystring.unescape(<value>string</value>)</literal></tag-name> |
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2521 <tag-desc> |
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2522 <para> |
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2523 Performs decoding of URL percent-encoded characters |
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2524 of the <literal>string</literal>, |
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2525 returns an unescaped query string. |
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2526 The method is used by |
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2527 <link id="querystring_parse"><literal>querystring.parse()</literal></link> |
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2528 and should not be used directly. |
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2529 </para> |
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2530 </tag-desc> |
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2531 |
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2532 </list> |
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2533 </para> |
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2534 |
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2535 </section> |
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2536 |
2176 | 2537 </section> |
2538 | |
2175
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2539 </article> |