Mercurial > hg > nginx-site
annotate xml/en/docs/njs/reference.xml @ 2444:d58fc33a0830
Improved description of stream keyval types.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Wed, 16 Oct 2019 19:02:24 +0300 |
parents | 080581ce888d |
children | 32b945768dea |
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="31"> |
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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 </section> |
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22 |
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23 |
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24 <section id="http_stream" name="nginx objects"> |
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25 |
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26 |
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27 <section id="http" name="HTTP Request"> |
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28 |
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29 <para> |
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30 The HTTP request object is available only in the |
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31 <link doc="../http/ngx_http_js_module.xml">ngx_http_js_module</link> module. |
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32 All string properties of the object are <link id="string">byte strings</link>. |
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33 |
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34 <list type="tag"> |
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35 |
2353 | 36 <tag-name id="r_args"><literal>r.args{}</literal></tag-name> |
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37 <tag-desc> |
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38 request arguments object, read-only |
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39 </tag-desc> |
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40 |
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41 <tag-name><literal>r.error(<value>string</value>)</literal></tag-name> |
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42 <tag-desc> |
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43 writes a <literal>string</literal> to the error log |
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44 on the <literal>error</literal> level of logging |
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45 </tag-desc> |
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46 |
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47 <tag-name><literal>r.finish()</literal></tag-name> |
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48 <tag-desc> |
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49 finishes sending a response to the client |
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50 </tag-desc> |
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51 |
2353 | 52 <tag-name id="r_headers_in"><literal>r.headersIn{}</literal></tag-name> |
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53 <tag-desc> |
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54 incoming headers object, read-only. |
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55 <para> |
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56 For example, the <literal>Foo</literal> header |
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57 can be accessed with the syntax <literal>headersIn.foo</literal> |
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58 or <literal>headersIn['Foo']</literal> |
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59 <note> |
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60 For headers that can appear multiple times such as |
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61 <header>Cookie</header> or <header>X-Forwarded-For</header>, |
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62 only the first value will be returned. |
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63 To get all cookies, |
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64 <literal>r.variables.http_cookie</literal> |
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65 should be used. |
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66 To get the <literal>name</literal> cookie, |
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67 <literal>r.variables["cookie_<value>name</value>"]</literal> |
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68 should be used. |
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69 </note> |
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70 </para> |
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71 </tag-desc> |
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72 |
2331 | 73 <tag-name id="r_headers_out"><literal>r.headersOut{}</literal></tag-name> |
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74 <tag-desc> |
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75 outgoing headers object, writable. |
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76 <para> |
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77 For example, the <literal>Foo</literal> header |
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78 can be accessed with the syntax <literal>headersOut.foo</literal> |
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79 or <literal>headersOut['Foo']</literal> |
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80 </para> |
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81 </tag-desc> |
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82 |
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83 <tag-name><literal>r.httpVersion</literal></tag-name> |
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84 <tag-desc> |
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85 HTTP version, read-only |
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86 </tag-desc> |
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87 |
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88 <tag-name><literal>r.log(<value>string</value>)</literal></tag-name> |
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89 <tag-desc> |
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90 writes a <literal>string</literal> to the error log |
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91 on the <literal>info</literal> level of logging |
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92 </tag-desc> |
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93 |
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94 <tag-name id="r_internal_redirect"><literal>r.internalRedirect(<value>uri</value>)</literal></tag-name> |
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95 <tag-desc> |
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96 performs an internal redirect to the specified <literal>uri</literal>. |
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97 If the uri starts with the “<literal>@</literal>” prefix, |
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98 it is considered a named location. |
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99 </tag-desc> |
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100 |
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101 <tag-name><literal>r.method</literal></tag-name> |
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102 <tag-desc> |
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103 HTTP method, read-only |
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104 </tag-desc> |
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105 |
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106 <tag-name><literal>r.parent</literal></tag-name> |
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107 <tag-desc> |
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108 references the parent request object |
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109 </tag-desc> |
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110 |
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111 <tag-name><literal>r.remoteAddress</literal></tag-name> |
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112 <tag-desc> |
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113 client address, read-only |
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114 </tag-desc> |
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115 |
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116 <tag-name id="r_request_body"><literal>r.requestBody</literal></tag-name> |
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117 <tag-desc> |
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118 returns the client request body if it has not been |
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119 written to a temporary file. |
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120 To ensure that the client request body is in memory, |
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121 its size should be limited by |
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122 <link doc="../http/ngx_http_core_module.xml" id="client_max_body_size"/>, |
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123 and a sufficient buffer size should be set using |
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124 <link doc="../http/ngx_http_core_module.xml" id="client_body_buffer_size"/>. |
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125 The property is available only in the |
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126 <link doc="../http/ngx_http_js_module.xml" id="js_content"/> directive. |
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127 </tag-desc> |
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128 |
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130 <tag-desc> |
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131 holds the <link id="subrequest">subrequest</link> response body, read-only. |
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132 The size of <literal>r.responseBody</literal> is limited by the |
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133 <link doc="../http/ngx_http_core_module.xml" id="subrequest_output_buffer_size"/> |
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134 directive. |
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135 </tag-desc> |
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136 |
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137 <tag-name><literal>r.return(status[, string])</literal></tag-name> |
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138 <tag-desc> |
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139 sends the entire response |
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140 with the specified <literal>status</literal> to the client |
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141 <para> |
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142 It is possible to specify either a redirect URL |
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143 (for codes 301, 302, 303, 307, and 308) |
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144 or the response body text (for other codes) as the second argument |
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145 </para> |
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146 </tag-desc> |
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147 |
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148 <tag-name><literal>r.send(<value>string</value>)</literal></tag-name> |
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149 <tag-desc> |
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150 sends a part of the response body to the client |
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151 </tag-desc> |
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152 |
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153 <tag-name><literal>r.sendHeader()</literal></tag-name> |
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154 <tag-desc> |
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155 sends the HTTP headers to the client |
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156 </tag-desc> |
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157 |
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158 <tag-name><literal>r.status</literal></tag-name> |
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159 <tag-desc> |
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160 status, writable |
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161 </tag-desc> |
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162 |
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163 <tag-name id="r_variables"><literal>r.variables{}</literal></tag-name> |
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164 <tag-desc> |
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165 nginx variables object, |
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166 writable (since <link doc="changes.xml" id="njs0.2.8">0.2.8</link>) |
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167 </tag-desc> |
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168 |
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169 <tag-name><literal>r.warn(<value>string</value>)</literal></tag-name> |
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170 <tag-desc> |
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171 writes a <literal>string</literal> to the error log |
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172 on the <literal>warning</literal> level of logging |
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173 </tag-desc> |
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174 |
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175 <tag-name id="r_uri"><literal>r.uri</literal></tag-name> |
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176 <tag-desc> |
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177 current <link doc="../http/ngx_http_core_module.xml" id="var_uri">URI</link> |
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178 in request, |
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179 <link doc="../http/ngx_http_core_module.xml" id="location">normalized</link>, |
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180 read-only |
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181 </tag-desc> |
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182 |
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183 <tag-name id="subrequest"><literal>r.subrequest(<value>uri</value>[, |
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184 <value>options</value>[, <value>callback</value>]])</literal></tag-name> |
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185 <tag-desc> |
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186 creates a subrequest with the given <literal>uri</literal> and |
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187 <literal>options</literal>, and installs |
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188 an optional completion <literal>callback</literal>. |
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189 |
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190 <para> |
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191 A |
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192 <link doc="../dev/development_guide.xml.xml" id="http_subrequests">subrequest</link> |
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193 shares its input headers with the client request. |
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194 To send headers different from original headers to a proxied server, the |
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195 <link doc="../http/ngx_http_proxy_module.xml" id="proxy_set_header"/> |
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196 directive can be used. |
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197 To send a completely new set of headers to a proxied server, the |
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198 <link doc="../http/ngx_http_proxy_module.xml" id="proxy_pass_request_headers"/> |
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199 directive can be used. |
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200 </para> |
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201 |
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202 <para> |
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203 If <literal>options</literal> is a string, then it |
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204 holds the subrequest arguments string. |
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205 Otherwise, <literal>options</literal> is expected to be |
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206 an object with the following keys: |
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207 <list type="tag"> |
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208 <tag-name><literal>args</literal></tag-name> |
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209 <tag-desc> |
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210 arguments string, by default an empty string is used |
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211 </tag-desc> |
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212 <tag-name><literal>body</literal></tag-name> |
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213 <tag-desc> |
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214 request body, |
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215 by default the request body of the parent request object is used |
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216 </tag-desc> |
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217 |
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218 <tag-name><literal>method</literal></tag-name> |
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219 <tag-desc> |
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220 HTTP method, by default the <literal>GET</literal> method is used |
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221 </tag-desc> |
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222 |
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223 </list> |
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224 </para> |
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225 |
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226 <para> |
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227 The completion <literal>callback</literal> receives |
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228 a subrequest response object with methods and properties |
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229 identical to the parent request object. |
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230 </para> |
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231 </tag-desc> |
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232 |
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233 </list> |
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234 </para> |
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235 |
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236 </section> |
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237 |
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238 |
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239 <section id="stream" name="Stream Session"> |
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240 |
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241 <para> |
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242 The stream session object is available only in the |
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243 <link doc="../stream/ngx_stream_js_module.xml">ngx_stream_js_module</link> |
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244 module. |
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245 All string properties of the object are <link id="string">byte strings</link>. |
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246 </para> |
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247 |
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248 <para> |
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249 <list type="tag"> |
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250 |
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251 <tag-name id="s_allow"><literal>s.allow()</literal></tag-name> |
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252 <tag-desc> |
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253 successfully finalizes the phase handler |
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254 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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255 </tag-desc> |
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256 |
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257 <tag-name id="s_decline"><literal>s.decline()</literal></tag-name> |
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258 <tag-desc> |
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259 finalizes the phase handler and passes control to the next handler |
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260 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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261 </tag-desc> |
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262 |
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263 <tag-name id="s_deny"><literal>s.deny()</literal></tag-name> |
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264 <tag-desc> |
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265 finalizes the phase handler with the access error code |
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266 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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267 </tag-desc> |
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268 |
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269 <tag-name id="s_done"><literal>s.done</literal>(<value>[code]</value>)</tag-name> |
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270 <tag-desc> |
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271 successfully finalizes the current phase handler |
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272 or finalizes it with the specified numeric code |
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273 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
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274 </tag-desc> |
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275 |
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276 <tag-name><literal>s.error(<value>string</value>)</literal></tag-name> |
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277 <tag-desc> |
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278 writes a sent <literal>string</literal> to the error log |
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279 on the <literal>error</literal> level of logging |
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280 </tag-desc> |
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281 |
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282 <tag-name><literal>s.log(<value>string</value>)</literal></tag-name> |
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283 <tag-desc> |
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284 writes a sent <value>string</value> to the error log |
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285 on the <literal>info</literal> level of logging |
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286 </tag-desc> |
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287 |
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288 <tag-name id="s_off"><literal>s.off(<value>eventName</value>)</literal></tag-name> |
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289 <tag-desc> |
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290 unregisters the callback set by the <link id="s_on">s.on()</link> method |
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291 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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292 </tag-desc> |
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293 |
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294 <tag-name id="s_on"><literal>s.on(<value>event</value>, |
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295 <value>callback</value>)</literal></tag-name> |
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296 <tag-desc> |
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297 registers a <literal>callback</literal> for the specified <literal>event</literal> |
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298 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
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299 |
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300 <para> |
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301 An <literal>event</literal> may be one of the following strings: |
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302 <list type="tag"> |
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303 <tag-name><literal>upload</literal></tag-name> |
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304 <tag-desc> |
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305 new data from a client |
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306 </tag-desc> |
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307 |
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308 <tag-name><literal>download</literal></tag-name> |
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309 <tag-desc> |
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310 new data to a client |
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311 </tag-desc> |
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312 |
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313 </list> |
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314 </para> |
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315 |
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316 <para> |
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317 The completion callback has the following prototype: |
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318 <literal>callback(data, flags)</literal>, where |
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319 <literal>data</literal> is string, |
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320 <literal>flags</literal> is an object |
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321 with the following properties: |
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322 <list type="tag"> |
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323 <tag-name id="s_on_callback_last"><literal>last</literal></tag-name> |
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324 <tag-desc> |
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325 a boolean value, true if data is a last buffer. |
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326 </tag-desc> |
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327 |
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328 </list> |
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329 </para> |
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330 </tag-desc> |
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331 |
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332 <tag-name><literal>s.remoteAddress</literal></tag-name> |
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333 <tag-desc> |
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334 client address, read-only |
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335 </tag-desc> |
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336 |
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337 <tag-name id="s_send"><literal>s.send(<value>data</value>[, |
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338 <value>options</value>])</literal></tag-name> |
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339 <tag-desc> |
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340 sends the data to the client |
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341 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
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342 The <literal>options</literal> is an object used |
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343 to override nginx buffer flags derived from an incoming data chunk buffer. |
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344 The flags can be overriden with the following flags: |
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345 <para> |
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346 <list type="tag"> |
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347 |
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348 <tag-name><literal>last</literal></tag-name> |
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349 <tag-desc> |
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350 boolean, true if the buffer is the last buffer |
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351 </tag-desc> |
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352 |
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353 <tag-name><literal>flush</literal></tag-name> |
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354 <tag-desc> |
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355 boolean, true if the buffer should have the <literal>flush</literal> flag |
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356 </tag-desc> |
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357 </list> |
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358 </para> |
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359 The method can be called multiple times per callback invocation. |
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360 </tag-desc> |
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361 |
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362 <tag-name id="s_variables"><literal>s.variables{}</literal></tag-name> |
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363 <tag-desc> |
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364 nginx variables object, writable |
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365 (since <link doc="changes.xml" id="njs0.2.8">0.2.8</link>) |
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366 </tag-desc> |
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367 |
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368 <tag-name><literal>s.warn(<value>string</value>)</literal></tag-name> |
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369 <tag-desc> |
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370 writes a sent <literal>string</literal> to the error log |
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371 on the <literal>warning</literal> level of logging |
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372 </tag-desc> |
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373 |
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374 </list> |
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375 </para> |
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376 |
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377 </section> |
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378 |
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379 </section> |
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380 |
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381 |
2176 | 382 <section id="core" name="Core"> |
383 | |
384 | |
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385 <section id="core_global" name="Global"> |
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386 |
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387 |
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388 <section id="process" name="Process"> |
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389 |
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390 <para> |
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391 The <literal>process</literal> object is a global object |
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392 that provides information about the current process |
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393 (<link doc="changes.xml" id="njs0.3.3">0.3.3</link>). |
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394 </para> |
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395 |
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396 |
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397 <para> |
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398 <list type="tag"> |
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399 |
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400 <tag-name id="process_argv"><literal>process.argv</literal></tag-name> |
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401 <tag-desc> |
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402 Returns an array that contains the command line arguments |
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403 passed when the current process was launched. |
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404 </tag-desc> |
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405 |
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406 <tag-name id="process_env"><literal>process.env</literal></tag-name> |
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407 <tag-desc> |
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408 Returns an object containing the user environment. |
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409 <note> |
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410 By default, nginx removes all environment variables inherited |
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411 from its parent process except the TZ variable. |
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412 Use the <link doc="../ngx_core_module.xml" id="env"/> directive |
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413 to preserve some of the inherited variables. |
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414 </note> |
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415 </tag-desc> |
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416 |
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417 <tag-name id="process_pid"><literal>process.pid</literal></tag-name> |
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418 <tag-desc> |
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419 Returns the PID of the current process. |
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420 </tag-desc> |
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421 |
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422 <tag-name id="process_ppid"><literal>process.ppid</literal></tag-name> |
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423 <tag-desc> |
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424 Returns the PID of the current parent process. |
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425 </tag-desc> |
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426 |
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427 </list> |
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428 </para> |
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429 |
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430 </section> |
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431 |
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432 </section> |
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433 |
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434 |
2312 | 435 <section id="core_object" name="Object"> |
436 | |
437 <para> | |
438 The <literal>Object</literal> constructor corresponds to a standard JS object. | |
439 <list type="tag"> | |
440 | |
441 <tag-name id="object_entries"><literal>Object.entries(<value>object</value>)</literal></tag-name> | |
442 <tag-desc> | |
443 returns an array of all enumerable property | |
444 <literal>[key, value]</literal> pairs | |
445 of the given <literal>object</literal> | |
446 (<link doc="changes.xml" id="njs0.2.7">0.2.7</link>). | |
447 </tag-desc> | |
448 | |
449 <tag-name id="object_values"><literal>Object.values(<value>object</value>)</literal></tag-name> | |
450 <tag-desc> | |
451 returns an array of all enumerable property values | |
452 of the given <literal>object</literal> | |
453 (<link doc="changes.xml" id="njs0.2.7">0.2.7</link>). | |
454 </tag-desc> | |
455 | |
456 </list> | |
457 </para> | |
458 | |
459 </section> | |
460 | |
461 | |
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462 <section id="string" name="String"> |
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463 |
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464 <para> |
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465 There are two types of strings in njs: a Unicode string (default) and |
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466 a byte string. |
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467 </para> |
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468 |
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469 <para> |
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470 A Unicode string corresponds to an ECMAScript string |
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471 which contains Unicode characters. |
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472 </para> |
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473 |
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474 <para> |
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475 Byte strings contain a sequence of bytes |
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476 and are used to serialize Unicode strings |
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|
477 to external data and deserialize from external sources. |
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478 For example, the <link id="string_toutf8">toUTF8()</link> method serializes |
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|
479 a Unicode string to a byte string using UTF8 encoding: |
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|
480 <example> |
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|
481 >> '£'.toUTF8().toString('hex') |
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|
482 'c2a3' /* C2 A3 is the UTF8 representation of 00A3 ('£') code point */ |
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483 </example> |
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|
484 The <link id="string_tobytes">toBytes()</link> method serializes |
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|
485 a Unicode string with code points up to 255 into a byte string, |
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|
486 otherwise, <literal>null</literal> is returned: |
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|
487 <example> |
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|
488 >> '£'.toBytes().toString('hex') |
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|
489 'a3' /* a3 is a byte equal to 00A3 ('£') code point */ |
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|
490 </example> |
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Added njs String object.
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|
491 Only byte strings can be converted to different encodings. |
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Added njs String object.
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|
492 For example, a string cannot be encoded to <literal>hex</literal> directly: |
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Added njs String object.
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changeset
|
493 <example> |
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changeset
|
494 >> 'αβγδ'.toString('base64') |
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Added njs String object.
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|
495 TypeError: argument must be a byte string |
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|
496 at String.prototype.toString (native) |
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|
497 at main (native) |
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|
498 </example> |
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|
499 To convert a Unicode string to hex, |
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|
500 first, it should be converted to a byte string and then to hex: |
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changeset
|
501 <example> |
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|
502 >> 'αβγδ'.toUTF8().toString('base64') |
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|
503 'zrHOss6zzrQ=' |
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|
504 </example> |
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changeset
|
505 |
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changeset
|
506 <list type="tag"> |
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|
507 |
2211
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Documented String.bytesFrom() method in njs.
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|
508 <tag-name id="string_bytesfrom"><literal>String.bytesFrom(<value>array</value> |
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|
509 | <value>string</value>, <value>encoding</value>)</literal></tag-name> |
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|
510 <tag-desc> |
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|
511 (njs specific) Creates a byte string either from an array that contains octets, |
2315
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Corrected language in njs.
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|
512 or from an encoded string |
2337
867fe207f13e
Updated links to changes.xml in njs Reference.
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changeset
|
513 (<link doc="changes.xml" id="njs0.2.3">0.2.3</link>). |
2211
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changeset
|
514 The encoding can be |
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Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
515 <literal>hex</literal>, |
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|
516 <literal>base64</literal>, and |
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diff
changeset
|
517 <literal>base64url</literal>. |
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parents:
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diff
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|
518 <example> |
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|
519 >> String.bytesFrom([0x62, 0x75, 0x66, 0x66, 0x65, 0x72]) |
660229c5c92f
Documented String.bytesFrom() method in njs.
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parents:
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|
520 'buffer' |
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Documented String.bytesFrom() method in njs.
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parents:
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diff
changeset
|
521 |
660229c5c92f
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parents:
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diff
changeset
|
522 >> String.bytesFrom('YnVmZmVy', 'base64') |
660229c5c92f
Documented String.bytesFrom() method in njs.
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parents:
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|
523 'buffer' |
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|
524 </example> |
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Documented String.bytesFrom() method in njs.
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|
525 </tag-desc> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
526 |
2271
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
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parents:
2268
diff
changeset
|
527 <tag-name id="string_fromcharcode"><literal>String.fromCharCode(<value>CharCode1</value>[, ...[, |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
528 <value>CharCodeN</value>]])</literal></tag-name> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
529 <tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
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parents:
2268
diff
changeset
|
530 Returns a string from one or more Unicode code points. |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
531 <example> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
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parents:
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diff
changeset
|
532 >> String.fromCharCode(97, 98, 99, 100) |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
533 'abcd' |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
534 </example> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
535 </tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
536 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
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parents:
2259
diff
changeset
|
537 <tag-name id="string_fromcodepoint"><literal>String.fromCodePoint(<value>codePoint1</value>[, ...[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
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2183
diff
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|
538 <value>codePoint2</value>]])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
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diff
changeset
|
539 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
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2183
diff
changeset
|
540 Returns a string from one or more Unicode code points. |
8e2b3aadc3ce
Added njs String object.
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diff
changeset
|
541 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
542 >> String.fromCodePoint(97, 98, 99, 100) |
2214
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Added quotes to njs examples.
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parents:
2212
diff
changeset
|
543 'abcd' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
544 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
545 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
546 |
2271
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
547 <tag-name id="string_charat"><literal>String.prototype.charAt(<value>index</value>)</literal></tag-name> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
548 <tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
549 Returns a string representing one Unicode code unit |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
550 at the specified <literal>index</literal>; |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
551 empty string if index is out of range. |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
552 The index can be an integer |
2271
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
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parents:
2268
diff
changeset
|
553 between 0 and 1-less-than the length of the string. |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
554 If no index is provided, the default is <literal>0</literal>, |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
555 so the first character in the string is returned. |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
556 </tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
557 |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
558 <tag-name id="string_codepointat"><literal>String.prototype.CodePointAt(<value>position</value>)</literal></tag-name> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
559 <tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
560 Returns a number representing the code point value of the character |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
561 at the given <literal>position</literal>; |
2271
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
562 <literal>undefined</literal> if there is no element at position. |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
563 <example> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
564 >> 'ABCD'.codePointAt(3); |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
565 68 |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
566 </example> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
567 </tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
568 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
569 <tag-name id="string_concat"><literal>String.prototype.concat(<value>string1</value>[, ..., |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
570 <value>stringN</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
571 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
572 Returns a string that contains the concatenation of specified |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
573 <literal>strings</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
574 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
575 >> "a".concat("b", "c") |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
576 'abc' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
577 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
578 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
579 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
580 <tag-name id="string_endswith"><literal>String.prototype.endsWith(<value>searchString</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
581 <value>length</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
582 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
583 Returns <literal>true</literal> if a string ends with the characters |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
584 of a specified string, otherwise <literal>false</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
585 The optional <literal>length</literal> parameter is the the length of string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
586 If omitted, the default value is the length of the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
587 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
588 >> 'abc'.endsWith('abc') |
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589 true |
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|
590 >> 'abca'.endsWith('abc') |
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591 false |
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|
592 </example> |
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|
593 </tag-desc> |
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|
594 |
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|
595 <tag-name id="string_frombytes"><literal>String.prototype.fromBytes(<value>start</value>[, |
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596 <value>end</value>])</literal></tag-name> |
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|
597 <tag-desc> |
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598 (njs specific) Returns a new Unicode string from a byte string |
8e2b3aadc3ce
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|
599 where each byte is replaced with a corresponding Unicode code point. |
8e2b3aadc3ce
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|
600 </tag-desc> |
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|
601 |
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|
602 <tag-name id="string_fromutf8"><literal>String.prototype.fromUTF8(<value>start</value>[, |
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603 <value>end</value>])</literal></tag-name> |
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|
604 <tag-desc> |
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parents:
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diff
changeset
|
605 (njs specific) Converts a byte string containing a valid UTF8 string |
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parents:
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|
606 into a Unicode string, |
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|
607 otherwise <literal>null</literal> is returned. |
8e2b3aadc3ce
Added njs String object.
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|
608 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
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|
609 |
2267
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|
610 <tag-name id="string_includes"><literal>String.prototype.includes(<value>searchString</value>[, |
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parents:
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|
611 <value>position</value>]))</literal></tag-name> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
612 <tag-desc> |
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Added njs String object.
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|
613 Returns <literal>true</literal> if a string is found within another string, |
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Added njs String object.
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parents:
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diff
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|
614 otherwise <literal>false</literal>. |
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|
615 The optional <literal>position</literal> parameter is the position |
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|
616 within the string at which to begin search for <literal>searchString</literal>. |
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Added njs String object.
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|
617 Default value is 0. |
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|
618 <example> |
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|
619 >> 'abc'.includes('bc') |
8e2b3aadc3ce
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|
620 true |
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parents:
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changeset
|
621 </example> |
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parents:
2183
diff
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|
622 </tag-desc> |
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parents:
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|
623 |
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|
624 <tag-name id="string_indexof"><literal>String.prototype.indexOf(<value>searchString</value>[, |
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|
625 <value>fromIndex</value>])</literal></tag-name> |
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|
626 <tag-desc> |
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parents:
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|
627 Returns the position of the first occurrence |
2315
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|
628 of the <literal>searchString</literal>. |
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|
629 The search is started at <literal>fromIndex</literal>. |
8e2b3aadc3ce
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|
630 Returns <value>-1</value> if the value is not found. |
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|
631 The <literal>fromIndex</literal> is an integer, |
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|
632 default value is 0. |
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parents:
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diff
changeset
|
633 If <literal>fromIndex</literal> is lower than 0 |
8e2b3aadc3ce
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|
634 or greater than |
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changeset
|
635 <link id="string_length">String.prototype.length</link><value></value>, |
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Added njs String object.
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parents:
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|
636 the search starts at index <value>0</value> and |
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|
637 <value>String.prototype.length</value>. |
8e2b3aadc3ce
Added njs String object.
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parents:
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diff
changeset
|
638 <example> |
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Added njs String object.
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parents:
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changeset
|
639 >> 'abcdef'.indexOf('de', 2) |
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parents:
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diff
changeset
|
640 3 |
8e2b3aadc3ce
Added njs String object.
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parents:
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diff
changeset
|
641 </example> |
8e2b3aadc3ce
Added njs String object.
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changeset
|
642 </tag-desc> |
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Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
643 |
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parents:
2259
diff
changeset
|
644 <tag-name id="string_lastindexof"><literal>String.prototype.lastIndexOf(<value>searchString</value>[, |
2186
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|
645 <value>fromIndex</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
646 <tag-desc> |
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Added njs String object.
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|
647 Returns the position of the last occurrence |
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Added njs String object.
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diff
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|
648 of the <literal>searchString</literal>, |
8e2b3aadc3ce
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parents:
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changeset
|
649 searching backwards from <literal>fromIndex</literal>. |
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Added njs String object.
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2183
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|
650 Returns <value>-1</value> if the value is not found. |
8e2b3aadc3ce
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diff
changeset
|
651 If <literal>searchString</literal> is empty, |
8e2b3aadc3ce
Added njs String object.
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|
652 then <literal>fromIndex</literal> is returned. |
8e2b3aadc3ce
Added njs String object.
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diff
changeset
|
653 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
654 >> "nginx".lastIndexOf("gi") |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
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2183
diff
changeset
|
655 1 |
8e2b3aadc3ce
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parents:
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diff
changeset
|
656 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
657 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
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parents:
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changeset
|
658 |
8e2b3aadc3ce
Added njs String object.
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|
659 <tag-name id="string_length"><literal>String.prototype.length</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
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parents:
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|
660 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
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|
661 Returns the length of the string. |
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Added njs String object.
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2183
diff
changeset
|
662 <example> |
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|
663 >> 'αβγδ'.length |
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Added njs String object.
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changeset
|
664 4 |
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Added njs String object.
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parents:
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diff
changeset
|
665 </example> |
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Added njs String object.
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parents:
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|
666 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
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|
667 |
2267
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Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
668 <tag-name id="string_match"><literal>String.prototype.match([<value>regexp</value>])</literal></tag-name> |
2186
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|
669 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
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|
670 Matches a string against a <literal>regexp</literal>. |
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Added njs String object.
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|
671 <example> |
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Added njs String object.
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changeset
|
672 >> 'nginx'.match( /ng/i ) |
2214
e029f4bc7ede
Added quotes to njs examples.
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changeset
|
673 'ng' |
2186
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changeset
|
674 </example> |
8e2b3aadc3ce
Added njs String object.
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diff
changeset
|
675 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
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parents:
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changeset
|
676 |
2212
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
677 <tag-name id="string_padend"><literal>String.prototype.padEnd(<value>length</value> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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changeset
|
678 [, <value>string</value>])</literal></tag-name> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
679 <tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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changeset
|
680 Returns a string of a specified <literal>length</literal> |
2315
ae56e4613280
Corrected language in njs.
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parents:
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diff
changeset
|
681 with the pad <literal>string</literal> applied to the end of the specified |
2337
867fe207f13e
Updated links to changes.xml in njs Reference.
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parents:
2332
diff
changeset
|
682 string (<link doc="changes.xml" id="njs0.2.3">0.2.3</link>). |
2212
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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|
683 <example> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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changeset
|
684 >> '1234'.padEnd(8, 'abcd') |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
685 '1234abcd' |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
686 </example> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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|
687 </tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
688 |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
689 <tag-name id="string_padstart"><literal>String.prototype.padStart(<value>length</value> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
690 [, <value>string</value>])</literal></tag-name> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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changeset
|
691 <tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
692 Returns a string of a specified <literal>length</literal> |
2315
ae56e4613280
Corrected language in njs.
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parents:
2313
diff
changeset
|
693 with the pad <literal>string</literal> applied to the start of the specified |
2337
867fe207f13e
Updated links to changes.xml in njs Reference.
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parents:
2332
diff
changeset
|
694 string (<link doc="changes.xml" id="njs0.2.3">0.2.3</link>). |
2212
c34a885b9d99
Documented padEnd() and padStart() for njs.
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diff
changeset
|
695 <example> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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changeset
|
696 >> '1234'.padStart(8, 'abcd') |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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changeset
|
697 'abcd1234' |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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changeset
|
698 </example> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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changeset
|
699 </tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
700 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
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parents:
2259
diff
changeset
|
701 <tag-name id="string_repeat"><literal>String.prototype.repeat(<value>number</value>)</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
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changeset
|
702 <tag-desc> |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
703 Returns a string |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
704 with the specified <literal>number</literal> of copies of the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
705 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
706 >> 'abc'.repeat(3) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
707 'abcabcabc' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
708 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
709 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
710 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
711 <tag-name id="string_replace"><literal>String.prototype.replace([<value>regexp</value>|<value>string</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
712 <value>string</value>|<value>function</value>]])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
713 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
714 Returns a new string with matches of a pattern |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
715 (<literal>string</literal> or a <literal>regexp</literal>) |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
716 replaced by a <literal>string</literal> or a <literal>function</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
717 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
718 >> 'abcdefgh'.replace('d', 1) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
719 'abc1efgh' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
720 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
721 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
722 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
723 <tag-name id="string_search"><literal>String.prototype.search([<value>regexp</value>])</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
724 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
725 Searches for a string using a <literal>regexp</literal> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
726 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
727 >> 'abcdefgh'.search('def') |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
728 3 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
729 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
730 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
731 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
732 <tag-name id="string_slice"><literal>String.prototype.slice(<value>start</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
733 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
734 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
735 Returns a new string containing a part of an |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
736 original string between <literal>start</literal> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
737 and <literal>end</literal> or |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
738 from <literal>start</literal> to the end of the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
739 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
740 >> 'abcdefghijklmno'.slice(NaN, 5) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
741 'abcde' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
742 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
743 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
744 |
2268
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
745 <tag-name id="string_split"><literal>String.prototype.split(([<value>string</value>|<value>regexp</value>[, |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
746 <value>limit</value>]]))</literal></tag-name> |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
747 <tag-desc> |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
748 Returns match of a string against a <literal>regexp</literal>. |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
749 The optional <literal>limit</literal> parameter is an integer that specifies |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
750 a limit on the number of splits to be found. |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
751 <example> |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
752 >> 'abc'.split('') |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
753 [ |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
754 'a', |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
755 'b', |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
756 'c' |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
757 ] |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
758 </example> |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
759 </tag-desc> |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
760 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
761 <tag-name id="string_startswith"><literal>String.prototype.startsWith(<value>searchString</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
762 <value>position</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
763 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
764 Returns <literal>true</literal> if a string begins with the characters |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
765 of a specified string, otherwise <literal>false</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
766 The optional <literal>position</literal> parameter is the position |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
767 in this string at which to begin search for <literal>searchString</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
768 Default value is 0. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
769 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
770 >> 'abc'.startsWith('abc') |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
771 true |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
772 > 'aabc'.startsWith('abc') |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
773 false |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
774 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
775 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
776 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
777 <tag-name id="string_substr"><literal>String.prototype.substr(<value>start</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
778 <value>length</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
779 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
780 Returns the part of the string of the specified <literal>length</literal> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
781 from <literal>start</literal> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
782 or from <literal>start</literal> to the end of the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
783 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
784 >> 'abcdefghijklmno'.substr(3, 5) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
785 'defgh' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
786 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
787 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
788 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
789 <tag-name id="string_substring"><literal>String.prototype.substring(<value>start</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
790 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
791 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
792 Returns the part of the string between |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
793 <literal>start</literal> and <literal>end</literal> or |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
794 from <literal>start</literal> to the end of the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
795 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
796 >> 'abcdefghijklmno'.substring(3, 5) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
797 'de' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
798 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
799 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
800 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
801 <tag-name id="string_tobytes"><literal>String.prototype.toBytes(start[, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
802 end])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
803 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
804 (njs specific) Serializes a Unicode string to a byte string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
805 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
|
806 found in the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
807 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
808 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
809 <tag-name id="string_tolowercase"><literal>String.prototype.toLowerCase()</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
810 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
811 Converts a string to lower case. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
812 The method supports only simple Unicode folding. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
813 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
814 >> 'ΑΒΓΔ'.toLowerCase() |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
815 'αβγδ' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
816 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
817 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
818 |
8e2b3aadc3ce
Added njs String object.
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diff
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|
819 <tag-name><literal>String.prototype.toString([<value>encoding</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
820 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
821 <para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
822 If no <literal>encoding</literal> is specified, |
8e2b3aadc3ce
Added njs String object.
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parents:
2183
diff
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|
823 returns a specified Unicode string or byte string as in ECMAScript. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
824 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
825 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
826 <para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
827 (njs specific) If <literal>encoding</literal> is specified, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
828 encodes a <link id="string_tobytes">byte string</link> to |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
829 <literal>hex</literal>, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
830 <literal>base64</literal>, or |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
831 <literal>base64url</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
832 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
833 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
834 >> 'αβγδ'.toUTF8().toString('base64url') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
835 'zrHOss6zzrQ' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
836 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
837 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
838 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
839 <tag-name id="string_touppercase"><literal>String.prototype.toUpperCase()</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
840 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
841 Converts a string to upper case. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
842 The method supports only simple Unicode folding. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
843 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
844 >> 'αβγδ'.toUpperCase() |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
845 'ΑΒΓΔ' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
846 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
847 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
848 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
849 <tag-name id="string_toutf8"><literal>String.prototype.toUTF8(<value>start</value>[, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
850 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
851 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
852 (njs specific) Serializes a Unicode string |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
853 to a byte string using UTF8 encoding. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
854 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
855 >> 'αβγδ'.toUTF8().length |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
856 8 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
857 >> 'αβγδ'.length |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
858 4 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
859 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
860 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
861 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
862 <tag-name id="string_trim"><literal>String.prototype.trim()</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
863 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
864 Removes whitespaces from both ends of a string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
865 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
866 >> ' abc '.trim() |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
867 'abc' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
868 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
869 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
870 |
2414 | 871 <tag-name id="string_trimend"><literal>String.prototype.trimEnd()</literal></tag-name> |
872 <tag-desc> | |
873 Removes whitespaces from the end of a string | |
874 (<link doc="changes.xml" id="njs0.3.4">0.3.4</link>). | |
875 <example> | |
876 >> ' abc '.trimEnd() | |
877 ' abc' | |
878 </example> | |
879 </tag-desc> | |
880 | |
881 <tag-name id="string_trimstart"><literal>String.prototype.trimStart()</literal></tag-name> | |
882 <tag-desc> | |
883 Removes whitespaces from the beginning of a string | |
884 (<link doc="changes.xml" id="njs0.3.4">0.3.4</link>). | |
885 <example> | |
886 >> ' abc '.trimStart() | |
887 'abc ' | |
888 </example> | |
889 </tag-desc> | |
890 | |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
891 <tag-name id="encodeuri"><literal>encodeURI(<value>URI</value>)</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
892 <tag-desc> |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
893 Encodes a URI by replacing each instance of certain characters |
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
894 by one, two, three, or four escape sequences |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
895 representing the UTF-8 encoding of the character |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
896 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
897 >> encodeURI('012αβγδ') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
898 '012%CE%B1%CE%B2%CE%B3%CE%B4' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
899 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
900 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
901 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
902 <tag-name id="encodeuricomponent"><literal>encodeURIComponent(<value>encodedURIString</value>)</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
903 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
904 Encodes a URI by replacing each instance of certain characters |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
905 by one, two, three, or four escape sequences |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
906 representing the UTF-8 encoding of the character. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
907 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
908 >> encodeURIComponent('[@?=') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
909 '%5B%40%3F%3D' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
910 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
911 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
912 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
913 <tag-name id="decodeuri"><literal>decodeURI(<value>encodedURI</value>)</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
914 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
915 Decodes a previously <link id="encodeuri">encoded</link> URI. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
916 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
917 >> decodeURI('012%CE%B1%CE%B2%CE%B3%CE%B4') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
918 '012αβγδ' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
919 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
920 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
921 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
922 <tag-name id="decodeuricomponent"><literal>decodeURIComponent(<value>decodedURIString</value>)</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
923 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
924 Decodes an encoded component of a previously encoded URI. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
925 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
926 >> decodeURIComponent('%5B%40%3F%3D') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
927 '[@?=' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
928 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
929 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
930 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
931 </list> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
932 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
933 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
934 </section> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
935 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
936 |
2176 | 937 <section id="core_json" name="JSON"> |
938 | |
939 <para> | |
940 The <literal>JSON</literal> object (ES 5.1) provides functions | |
941 to convert njs values to and from JSON format. | |
942 <list type="tag"> | |
943 | |
2394
bde611cbb7ae
Reordered some items in njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2356
diff
changeset
|
944 <tag-name id="core_json_parse"><literal>JSON.parse(<value>string</value>[, |
2176 | 945 <value>reviver</value>])</literal></tag-name> |
946 <tag-desc> | |
947 Converts a <literal>string</literal> that represents JSON data | |
948 into an njs object (<literal>{...}</literal>) or | |
949 array (<literal>[...]</literal>). | |
950 The optional <literal>reviver</literal> parameter is a function (key, value) | |
951 that will be called for each (key,value) pair and can transform the value. | |
952 </tag-desc> | |
953 | |
2394
bde611cbb7ae
Reordered some items in njs Compatibility.
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parents:
2356
diff
changeset
|
954 <tag-name id="core_json_stringify"><literal>JSON.stringify(<value>value</value>[, |
2176 | 955 <value>replacer</value>] [, <value>space</value>])</literal></tag-name> |
956 <tag-desc> | |
957 Converts an njs object back to JSON. | |
958 The obligatory <literal>value</literal> parameter is generally a JSON | |
959 <literal>object</literal> or <literal>array</literal> that will be converted. | |
960 If the value has a <literal>toJSON()</literal> method, | |
961 it defines how the object will be serialized. | |
962 The optional <literal>replacer</literal> parameter is | |
963 a <literal>function</literal> or <literal>array</literal> | |
964 that transforms results. | |
965 The optional <literal>space</literal> parameter is | |
966 a <literal>string</literal> or <literal>number</literal>. | |
967 If it is a <literal>number</literal>, | |
968 it indicates the number of white spaces placed before a result | |
969 (no more than 10). | |
970 If it is a <literal>string</literal>, | |
971 it is used as a white space (or first 10 characters of it). | |
972 If omitted or is <literal>null</literal>, no white space is used. | |
973 </tag-desc> | |
974 </list> | |
975 </para> | |
976 | |
977 <para> | |
978 <example> | |
979 >> var json = JSON.parse('{"a":1, "b":true}') | |
980 >> json.a | |
981 1 | |
982 | |
983 >> JSON.stringify(json) | |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
984 '{"a":1,"b":true}' |
2176 | 985 |
986 >> JSON.stringify({ x: [10, undefined, function(){}] }) | |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
987 '{"x":[10,null,null]}' |
2176 | 988 |
989 >> JSON.stringify({"a":1, "toJSON": function() {return "xxx"}}) | |
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990 '"xxx"' |
2176 | 991 |
992 # Example with function replacer | |
993 | |
994 >> function replacer(key, value) {return (typeof value === 'string') ? undefined : value} | |
995 >>JSON.stringify({a:1, b:"b", c:true}, replacer) | |
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996 '{"a":1,"c":true}' |
2176 | 997 </example> |
998 </para> | |
999 | |
1000 </section> | |
1001 | |
2177 | 1002 |
1003 <section id="crypto" name="Crypto"> | |
1004 | |
1005 <para> | |
1006 The Crypto module provides cryptographic functionality support. | |
1007 The Crypto module object is returned by <literal>require('crypto')</literal>. | |
1008 </para> | |
1009 | |
1010 <para> | |
1011 <list type="tag"> | |
1012 | |
2267
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1013 <tag-name id="crypto_createhash"><literal>crypto.createHash(<value>algorithm</value>)</literal></tag-name> |
2177 | 1014 <tag-desc> |
1015 Creates and returns a <link id="crypto_hash">Hash</link> object | |
1016 that can be used to generate hash digests | |
1017 using the given <value>algorithm</value>. | |
1018 The algorighm can be | |
1019 <literal>md5</literal>, | |
1020 <literal>sha1</literal>, and | |
1021 <literal>sha256</literal>. | |
1022 </tag-desc> | |
1023 | |
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1024 <tag-name id="crypto_createhmac"><literal>crypto.createHmac(<value>algorithm</value>, |
2177 | 1025 <value>secret key</value>)</literal></tag-name> |
1026 <tag-desc> | |
1027 Creates and returns an <link id="crypto_hmac">HMAC</link> object | |
1028 that uses the given <value>algorithm</value> and <value>secret key</value>. | |
1029 The algorighm can be | |
1030 <literal>md5</literal>, | |
1031 <literal>sha1</literal>, and | |
1032 <literal>sha256</literal>. | |
1033 </tag-desc> | |
1034 | |
1035 </list> | |
1036 </para> | |
1037 | |
1038 | |
1039 <section id="crypto_hash" name="Hash"> | |
1040 | |
1041 <para> | |
1042 <list type="tag"> | |
1043 | |
1044 <tag-name><literal>hash.update(<value>data</value>)</literal></tag-name> | |
1045 <tag-desc> | |
1046 Updates the hash content with the given <value>data</value>. | |
1047 </tag-desc> | |
1048 | |
1049 <tag-name><literal>hash.digest([<value>encoding</value>])</literal></tag-name> | |
1050 <tag-desc> | |
1051 Calculates the digest of all of the data passed using | |
1052 <literal>hash.update()</literal>. | |
1053 The encoding can be | |
1054 <literal>hex</literal>, | |
1055 <literal>base64</literal>, and | |
1056 <literal>base64url</literal>. | |
1057 If encoding is not provided, a byte string is returned. | |
1058 </tag-desc> | |
1059 | |
1060 </list> | |
1061 </para> | |
1062 | |
1063 <para> | |
1064 <example> | |
1065 >> var cr = require('crypto') | |
1066 undefined | |
1067 | |
1068 >> cr.createHash('sha1').update('A').update('B').digest('base64url') | |
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1069 'BtlFlCqiamG-GMPiK_GbvKjdK10' |
2177 | 1070 </example> |
1071 </para> | |
1072 | |
1073 </section> | |
1074 | |
1075 | |
1076 <section id="crypto_hmac" name="HMAC"> | |
1077 | |
1078 <para> | |
1079 <list type="tag"> | |
1080 | |
1081 <tag-name><literal>hmac.update(<value>data</value>)</literal></tag-name> | |
1082 <tag-desc> | |
1083 Updates the HMAC content with the given <value>data</value>. | |
1084 </tag-desc> | |
1085 | |
1086 <tag-name><literal>hmac.digest([<value>encoding</value>])</literal></tag-name> | |
1087 <tag-desc> | |
1088 Calculates the HMAC digest of all of the data passed using | |
1089 <literal>hmac.update()</literal>. | |
1090 The encoding can be | |
1091 <literal>hex</literal>, | |
1092 <literal>base64</literal>, and | |
1093 <literal>base64url</literal>. | |
1094 If encoding is not provided, a byte string is returned. | |
1095 </tag-desc> | |
1096 </list> | |
1097 </para> | |
1098 | |
1099 <para> | |
1100 <example> | |
1101 >> var cr = require('crypto') | |
1102 undefined | |
1103 | |
1104 >> cr.createHmac('sha1', 'secret.key').update('AB').digest('base64url') | |
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1105 'Oglm93xn23_MkiaEq_e9u8zk374' |
2177 | 1106 </example> |
1107 </para> | |
1108 | |
1109 </section> | |
1110 | |
1111 </section> | |
1112 | |
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1113 <section id="njs_api_timers" name="Timers"> |
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1114 |
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1115 <para> |
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1116 |
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1117 <list type="tag"> |
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1118 |
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1119 <tag-name id="cleartimeout"><literal>clearTimeout(<value>timeout</value>)</literal></tag-name> |
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1120 <tag-desc> |
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1121 Cancels a <literal>timeout</literal> object |
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1122 created by <link id="settimeout">setTimeout()</link>. |
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1123 </tag-desc> |
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1124 |
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1125 <tag-name id="settimeout"><literal>setTimeout(<value>function</value>, |
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1126 <value>ms</value>[, <value>arg1</value>, <value>argN</value>])</literal></tag-name> |
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1127 <tag-desc> |
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1128 Calls a <literal>function</literal> |
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1129 after a specified number of <literal>milliseconds</literal>. |
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1130 One or more optional <literal>arguments</literal> |
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1131 can be passed to the specified function. |
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1132 Returns a <literal>timeout</literal> object. |
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1133 <example> |
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1134 function handler(v) |
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1135 { |
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1136 // ... |
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1137 } |
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1138 |
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1139 t = setTimeout(handler, 12); |
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1140 |
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1141 // ... |
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1142 |
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1143 clearTimeout(t); |
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1144 </example> |
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1145 </tag-desc> |
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1146 |
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1147 </list> |
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1148 </para> |
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1149 |
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1150 </section> |
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1151 |
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1152 |
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1153 <section id="njs_api_fs" name="File System"> |
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1154 |
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1155 <para> |
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1156 The File System module provides operations with files. |
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1157 The module object is returned by <literal>require('fs')</literal>. |
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1158 <list type="tag"> |
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1159 |
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1160 <tag-name id="appendfilesync"><literal>appendFileSync(<value>filename</value>, |
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1161 <value>data</value>[, <value>options</value>])</literal></tag-name> |
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1162 <tag-desc> |
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1163 Synchronously appends specified <literal>data</literal> |
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1164 to a file with provided <literal>filename</literal>. |
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1165 If the file does not exist, it will be created. |
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1166 The <literal>options</literal> parameter is expected to be |
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1167 an object with the following keys: |
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1168 <list type="tag"> |
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1169 |
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1170 <tag-name><literal>mode</literal></tag-name> |
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1171 <tag-desc> |
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1172 mode option, by default is <literal>0o666</literal> |
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1173 </tag-desc> |
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1174 |
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1175 <tag-name><literal>flag</literal></tag-name> |
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1176 <tag-desc> |
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1177 file system <link id="njs_api_fs_flags">flag</link>, |
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1178 by default is <literal>a</literal> |
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1179 </tag-desc> |
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1180 |
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1181 </list> |
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1182 </tag-desc> |
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1183 |
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1184 <tag-name id="readfilesync"><literal>readFileSync(<value>filename</value>[, |
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1185 <value>options</value>])</literal></tag-name> |
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1186 <tag-desc> |
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1187 Synchronously returns the contents of the file |
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1188 with provided <literal>filename</literal>. |
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1189 The <literal>options</literal> parameter holds |
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1190 <literal>string</literal> that specifies encoding. |
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1191 If not specified, a <link id="string_tobytes">byte string</link> is returned. |
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1192 If <literal>utf8</literal> encoding is specified, a Unicode string is returned. |
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1193 Otherwise, <literal>options</literal> is expected to be |
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1194 an object with the following keys: |
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1195 <list type="tag"> |
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1196 |
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1197 <tag-name><literal>encoding</literal></tag-name> |
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1198 <tag-desc> |
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1199 encoding, by default is not specified. |
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1200 The encoding can be <literal>utf8</literal> |
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parents:
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diff
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|
1201 </tag-desc> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1202 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1203 <tag-name><literal>flag</literal></tag-name> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1204 <tag-desc> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1205 file system <link id="njs_api_fs_flags">flag</link>, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1206 by default is <literal>r</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1207 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1208 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1209 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1210 <example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1211 >> var fs = require('fs') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1212 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1213 >> var file = fs.readFileSync('/file/path.tar.gz') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1214 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1215 >> var gzipped = /^\x1f\x8b/.test(file); gzipped |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1216 true |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1217 </example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1218 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1219 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1220 <tag-name id="writefilesync"><literal>writeFileSync(<value>filename</value>, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1221 <value>data</value>[, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1222 <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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|
1223 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1224 Synchronously writes <literal>data</literal> to a file |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1225 with provided <literal>filename</literal>. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1226 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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changeset
|
1227 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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|
1228 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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|
1229 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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|
1230 <list type="tag"> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1231 <tag-name><literal>mode</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1232 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1233 mode option, by default is <literal>0o666</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1234 </tag-desc> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1235 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1236 <tag-name><literal>flag</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1237 <tag-desc> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1238 file system <link id="njs_api_fs_flags">flag</link>, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1239 by default is <literal>w</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1240 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1241 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1242 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1243 <example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1244 >> var fs = require('fs') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1245 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1246 >> var file = fs.writeFileSync('hello.txt', 'Hello world') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1247 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1248 </example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1249 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1250 |
2414 | 1251 <tag-name id="renamesync"><literal>renameSync(<value>oldPath</value>, |
1252 <value>newPath</value>)</literal></tag-name> | |
1253 <tag-desc> | |
1254 Synchronously changes the name or location of a file from | |
1255 <literal>oldPath</literal> to <literal>newPath</literal> | |
1256 (<link doc="changes.xml" id="njs0.3.4">0.3.4</link>). | |
1257 <example> | |
1258 >> var fs = require('fs') | |
1259 undefined | |
1260 >> var file = fs.renameSync('hello.txt', 'HelloWorld.txt') | |
1261 undefined | |
1262 </example> | |
1263 </tag-desc> | |
1264 | |
2204
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1265 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1266 </para> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1267 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1268 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1269 <section id="njs_api_fs_flags" name="File System Flags"> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1270 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1271 <para> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1272 The <literal>flag</literal> option can accept the following values: |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1273 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1274 <list type= "bullet" compact="no"> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1275 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1276 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1277 <literal>a</literal>—open a file for appending. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1278 The file is created if it does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
1279 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
1280 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1281 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1282 <literal>ax</literal>—the same as <literal>a</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1283 but fails if the file already exists |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1284 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1285 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1286 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1287 <literal>a+</literal>—open a file for reading and appending. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1288 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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|
1289 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1290 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1291 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1292 <literal>ax+</literal>—the same as <literal>a+</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1293 but fails if the file already exists |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1294 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1295 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
1296 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1297 <literal>as</literal>—open a file for appending in synchronous mode. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1298 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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|
1299 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1300 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1301 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1302 <literal>as+</literal>—open a file for reading and appending |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1303 in synchronous mode. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1304 If the file does not exist, it will be created |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1305 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1306 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1307 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1308 <literal>r</literal>—open a file for reading. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1309 An exception occurs if the file does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1310 </listitem> |
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Documented fileSystem methods in njs.
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|
1311 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1312 <listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1313 <literal>r+</literal>—open a file for reading and writing. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1314 An exception occurs if the file does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1315 </listitem> |
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Documented fileSystem methods in njs.
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|
1316 |
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Documented fileSystem methods in njs.
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|
1317 <listitem> |
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Documented fileSystem methods in njs.
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|
1318 <literal>rs+</literal>—open a file for reading and writing |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1319 in synchronous mode. |
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Documented fileSystem methods in njs.
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|
1320 Instructs the operating system to bypass the local file system cache |
001f2d905fd9
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|
1321 </listitem> |
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|
1322 |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1323 <listitem> |
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Documented fileSystem methods in njs.
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|
1324 <literal>w</literal>—open a file for writing. |
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|
1325 If the file does not exist, it will be created. |
001f2d905fd9
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|
1326 If the file exists, it will be replaced |
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Documented fileSystem methods in njs.
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|
1327 </listitem> |
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|
1328 |
001f2d905fd9
Documented fileSystem methods in njs.
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changeset
|
1329 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
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1330 <literal>wx</literal>—the same as <literal>w</literal> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1331 but fails if the file already exists |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1332 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1333 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1334 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1335 <literal>w+</literal>—open a file for reading and writing. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1336 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
|
1337 If the file exists, it will be replaced |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1338 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1339 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1340 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1341 <literal>wx+</literal>—the same as <literal>w+</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1342 but fails if the file already exists |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1343 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1344 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1345 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1346 </para> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1347 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1348 </section> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1349 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1350 </section> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1351 |
2176 | 1352 </section> |
1353 | |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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1354 </article> |