Mercurial > hg > nginx-site
annotate xml/en/docs/njs/reference.xml @ 2286:b9144a131eff
Corrected example in njs Command-line interface.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Tue, 27 Nov 2018 16:35:51 +0300 |
parents | e58e7b2eff51 |
children | 1a6524706c70 |
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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" |
2285 | 12 rev="16"> |
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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 |
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36 <tag-name><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 |
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52 <tag-name><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 </para> |
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60 </tag-desc> |
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61 |
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62 <tag-name><literal>r.headersOut{}</literal></tag-name> |
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63 <tag-desc> |
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64 outgoing headers object, writable. |
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65 <para> |
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66 For example, the <literal>Foo</literal> header |
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67 can be accessed with the syntax <literal>headersOut.foo</literal> |
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68 or <literal>headersOut['Foo']</literal> |
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69 </para> |
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70 </tag-desc> |
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71 |
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72 <tag-name><literal>r.httpVersion</literal></tag-name> |
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73 <tag-desc> |
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74 HTTP version, read-only |
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75 </tag-desc> |
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76 |
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77 <tag-name><literal>r.log(<value>string</value>)</literal></tag-name> |
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78 <tag-desc> |
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79 writes a <literal>string</literal> to the error log |
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80 on the <literal>info</literal> level of logging |
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81 </tag-desc> |
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82 |
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83 <tag-name id="r_internal_redirect"><literal>r.internalRedirect(<value>uri</value>)</literal></tag-name> |
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84 <tag-desc> |
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85 performs an internal redirect to the specified <literal>uri</literal>. |
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86 If the uri starts with the “<literal>@</literal>” prefix, |
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87 it is considered a named location. |
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88 </tag-desc> |
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89 |
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90 <tag-name><literal>r.method</literal></tag-name> |
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91 <tag-desc> |
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92 HTTP method, read-only |
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93 </tag-desc> |
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94 |
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95 <tag-name><literal>r.parent</literal></tag-name> |
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96 <tag-desc> |
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97 references the parent request object |
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98 </tag-desc> |
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99 |
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100 <tag-name><literal>r.remoteAddress</literal></tag-name> |
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101 <tag-desc> |
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102 client address, read-only |
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103 </tag-desc> |
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104 |
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105 <tag-name id="r_request_body"><literal>r.requestBody</literal></tag-name> |
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106 <tag-desc> |
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107 returns the client request body if it has not been |
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108 written to a temporary file. |
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109 To ensure that the client request body is in memory, |
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110 its size should be limited by |
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111 <link doc="../http/ngx_http_core_module.xml" id="client_max_body_size"/>, |
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112 and a sufficient buffer size should be set using |
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113 <link doc="../http/ngx_http_core_module.xml" id="client_body_buffer_size"/>. |
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114 </tag-desc> |
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115 |
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116 <tag-name><literal>r.responseBody</literal></tag-name> |
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117 <tag-desc> |
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118 holds the <link id="subrequest">subrequest</link> response body, read-only. |
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119 The size of <literal>r.responseBody</literal> is limited by the |
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120 <link doc="../http/ngx_http_core_module.xml" id="subrequest_output_buffer_size"/> |
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121 directive. |
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122 </tag-desc> |
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123 |
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124 <tag-name><literal>r.return(status[, string])</literal></tag-name> |
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125 <tag-desc> |
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126 sends the entire response |
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127 with the specified <literal>status</literal> to the client |
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128 <para> |
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129 It is possible to specify either a redirect URL |
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130 (for codes 301, 302, 303, 307, and 308) |
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131 or the response body text (for other codes) as the second argument |
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132 </para> |
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133 </tag-desc> |
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134 |
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135 <tag-name><literal>r.send(<value>string</value>)</literal></tag-name> |
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136 <tag-desc> |
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137 sends a part of the response body to the client |
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138 </tag-desc> |
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139 |
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140 <tag-name><literal>r.sendHeader()</literal></tag-name> |
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141 <tag-desc> |
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142 sends the HTTP headers to the client |
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143 </tag-desc> |
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144 |
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145 <tag-name><literal>r.status</literal></tag-name> |
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146 <tag-desc> |
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147 status, writable |
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148 </tag-desc> |
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149 |
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150 <tag-name><literal>r.variables{}</literal></tag-name> |
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151 <tag-desc> |
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152 nginx variables object, read-only |
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153 </tag-desc> |
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154 |
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155 <tag-name><literal>r.warn(<value>string</value>)</literal></tag-name> |
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156 <tag-desc> |
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157 writes a <literal>string</literal> to the error log |
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158 on the <literal>warning</literal> level of logging |
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159 </tag-desc> |
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160 |
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161 <tag-name><literal>r.uri</literal></tag-name> |
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162 <tag-desc> |
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163 current URI, read-only |
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164 </tag-desc> |
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165 |
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166 <tag-name id="subrequest"><literal>r.subrequest(<value>uri</value>[, |
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167 <value>options</value>[, <value>callback</value>]])</literal></tag-name> |
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168 <tag-desc> |
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169 creates a subrequest with the given <literal>uri</literal> and |
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170 <literal>options</literal>, and installs |
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171 an optional completion <literal>callback</literal>. |
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172 |
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173 <para> |
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174 If <literal>options</literal> is a string, then it |
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175 holds the subrequest arguments string. |
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176 Otherwise, <literal>options</literal> is expected to be |
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177 an object with the following keys: |
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178 <list type="tag"> |
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179 <tag-name><literal>args</literal></tag-name> |
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180 <tag-desc> |
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181 arguments string |
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182 </tag-desc> |
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183 <tag-name><literal>body</literal></tag-name> |
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184 <tag-desc> |
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185 request body |
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186 </tag-desc> |
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187 |
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188 <tag-name><literal>method</literal></tag-name> |
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189 <tag-desc> |
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190 HTTP method |
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191 </tag-desc> |
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192 |
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193 </list> |
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194 </para> |
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195 |
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196 <para> |
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197 The completion <literal>callback</literal> receives |
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198 a subrequest response object with methods and properties |
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199 identical to the parent request object. |
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200 </para> |
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201 </tag-desc> |
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202 |
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203 </list> |
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204 </para> |
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205 |
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206 </section> |
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207 |
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208 |
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209 <section id="stream" name="Stream Session"> |
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210 |
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211 <para> |
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212 The stream session object is available only in the |
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213 <link doc="../stream/ngx_stream_js_module.xml">ngx_stream_js_module</link> |
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214 module. |
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215 All string properties of the object are <link id="string">byte strings</link>. |
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216 </para> |
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217 |
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218 <para> |
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219 <note> |
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220 Prior to njs <link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>, |
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221 the stream session object had some properties which are currently |
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222 <link id="stream_obsolete">removed</link>. |
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223 </note> |
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224 </para> |
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225 |
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226 <para> |
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227 <list type="tag"> |
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228 |
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229 <tag-name id="s_allow"><literal>s.allow()</literal></tag-name> |
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230 <tag-desc> |
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231 successfully finalizes the phase handler |
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232 (<link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>) |
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233 </tag-desc> |
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234 |
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235 <tag-name id="s_decline"><literal>s.decline()</literal></tag-name> |
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236 <tag-desc> |
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237 finalizes the phase handler and passes control to the next handler |
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238 (<link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>) |
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239 </tag-desc> |
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240 |
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241 <tag-name id="s_deny"><literal>s.deny()</literal></tag-name> |
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242 <tag-desc> |
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243 finalizes the phase handler with the access error code |
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244 (<link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>) |
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245 </tag-desc> |
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246 |
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247 <tag-name id="s_done"><literal>s.done</literal>(<value>[code]</value>)</tag-name> |
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248 <tag-desc> |
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249 successfully finalizes the current phase handler |
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250 or finalizes it with the specified numeric code |
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251 (<link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>). |
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252 </tag-desc> |
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253 |
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254 <tag-name><literal>s.error(<value>string</value>)</literal></tag-name> |
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255 <tag-desc> |
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256 writes a sent <literal>string</literal> to the error log |
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257 on the <literal>error</literal> level of logging |
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258 </tag-desc> |
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259 |
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260 <tag-name><literal>s.log(<value>string</value>)</literal></tag-name> |
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261 <tag-desc> |
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262 writes a sent <value>string</value> to the error log |
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263 on the <literal>info</literal> level of logging |
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264 </tag-desc> |
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265 |
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266 <tag-name id="s_off"><literal>s.off(<value>eventName</value>)</literal></tag-name> |
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267 <tag-desc> |
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268 unregisters the callback set by the <link id="s_on">s.on()</link> method |
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269 (<link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>) |
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270 </tag-desc> |
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271 |
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272 <tag-name id="s_on"><literal>s.on(<value>event</value>, |
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273 <value>callback</value>)</literal></tag-name> |
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274 <tag-desc> |
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275 registers a <literal>callback</literal> for the specified <literal>event</literal> |
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276 (<link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>). |
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277 |
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278 <para> |
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279 An <literal>event</literal> may be one of the following strings: |
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280 <list type="tag"> |
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281 <tag-name><literal>upload</literal></tag-name> |
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282 <tag-desc> |
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283 new data from a client |
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284 </tag-desc> |
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285 |
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286 <tag-name><literal>download</literal></tag-name> |
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287 <tag-desc> |
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288 new data to a client |
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289 </tag-desc> |
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290 |
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291 </list> |
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292 </para> |
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293 |
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294 <para> |
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295 The completion callback has the following prototype: |
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296 <literal>callback(data, flags)</literal>, where |
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297 <literal>data</literal> is string, |
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298 <literal>flags</literal> is an object |
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299 with the following properties: |
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300 <list type="tag"> |
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301 <tag-name id="s_on_callback_last"><literal>last</literal></tag-name> |
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302 <tag-desc> |
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303 a boolean value, true if data is a last buffer. |
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304 </tag-desc> |
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305 |
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306 </list> |
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307 </para> |
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308 </tag-desc> |
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309 |
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310 <tag-name><literal>s.remoteAddress</literal></tag-name> |
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311 <tag-desc> |
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312 client address, read-only |
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313 </tag-desc> |
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314 |
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315 <tag-name id="s_send"><literal>s.send(<value>data</value>[, |
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316 <value>options</value>])</literal></tag-name> |
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317 <tag-desc> |
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318 sends the data to the client |
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319 (<link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>). |
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320 The <literal>options</literal> is an object used |
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321 to override nginx buffer flags derived from an incoming data chunk buffer. |
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322 The flags can be overriden with the following flags: |
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323 <para> |
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324 <list type="tag"> |
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325 |
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326 <tag-name><literal>last</literal></tag-name> |
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327 <tag-desc> |
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328 boolean, true if the buffer is the last buffer |
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329 </tag-desc> |
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330 |
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331 <tag-name><literal>flush</literal></tag-name> |
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332 <tag-desc> |
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333 boolean, true if the buffer should have the <literal>flush</literal> flag |
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334 </tag-desc> |
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335 </list> |
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336 </para> |
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337 The method can be called multiple times per callback invocation. |
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338 </tag-desc> |
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339 |
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340 <tag-name><literal>s.variables{}</literal></tag-name> |
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341 <tag-desc> |
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342 nginx variables object, read-only |
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343 </tag-desc> |
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344 |
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345 <tag-name><literal>s.warn(<value>string</value>)</literal></tag-name> |
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346 <tag-desc> |
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347 writes a sent <literal>string</literal> to the error log |
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348 on the <literal>warning</literal> level of logging |
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349 </tag-desc> |
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350 |
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351 </list> |
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352 </para> |
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353 |
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354 |
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355 <section id="stream_obsolete" name="Obsolete properties"> |
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356 |
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357 <para> |
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358 These properties have been removed |
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359 in njs <link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link> |
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360 and are not backward compatible with the existing njs code. |
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361 </para> |
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362 |
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363 <para> |
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364 <list type="tag"> |
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365 |
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366 <tag-name id="s_abort"><literal>s.ABORT</literal></tag-name> |
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367 <tag-desc> |
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368 the <literal>ABORT</literal> return code |
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369 <note> |
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370 Starting from njs <link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>, |
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371 the <link id="s_deny">s.deny()</link> method should be used instead. |
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372 </note> |
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373 </tag-desc> |
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374 |
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375 <tag-name><literal>s.AGAIN</literal></tag-name> |
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376 <tag-desc> |
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377 the <literal>AGAIN</literal> return code |
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378 <note> |
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379 Starting from njs <link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>, |
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380 the corresponding behavior is achieved if no |
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381 <link id="s_allow">s.allow()</link>, |
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382 <link id="s_deny">s.deny()</link>, |
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383 <link id="s_decline">s.decline()</link>, |
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384 <link id="s_done">s.done()</link> |
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385 is invoked and a callback is registered. |
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386 </note> |
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387 </tag-desc> |
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388 |
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389 <tag-name id="s_buffer"><literal>s.buffer</literal></tag-name> |
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390 <tag-desc> |
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391 the current buffer, writable |
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392 <note> |
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393 Starting from <link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>, |
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394 the <link id="s_send">s.send()</link> method should be used for writing. |
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395 For reading, the current buffer is available as the first argument of the |
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396 <literal>event</literal> callback. |
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397 </note> |
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398 </tag-desc> |
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399 |
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400 <tag-name><literal>s.DECLINED</literal></tag-name> |
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401 <tag-desc> |
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402 the <literal>DECLINED</literal> return code |
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403 <note> |
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404 Starting from njs <link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>, |
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405 the <link id="s_decline">s.decline()</link> method should be used instead. |
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406 </note> |
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407 </tag-desc> |
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408 |
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409 <tag-name><literal>s.eof</literal></tag-name> |
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410 <tag-desc> |
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411 a boolean read-only property, true if the current buffer is the last buffer |
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412 <note> |
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413 Starting from <link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>, |
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414 the <link id="s_on_callback_last">flags.last</link> property |
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415 should be used instead. |
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416 </note> |
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417 </tag-desc> |
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418 |
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419 <tag-name><literal>s.ERROR</literal></tag-name> |
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420 <tag-desc> |
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421 the <literal>ERROR</literal> return code |
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422 <note> |
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423 Starting from njs <link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>, |
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424 an appropriate exception can be thrown to report an error. |
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425 </note> |
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426 </tag-desc> |
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427 |
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428 <tag-name><literal>s.fromUpstream</literal></tag-name> |
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429 <tag-desc> |
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430 a boolean read-only property, |
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431 true if the current buffer is from the upstream server to the client |
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432 <note> |
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433 Starting from <link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>, |
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434 a corresponding <link id="s_on">event</link> |
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435 (<literal>upload</literal> or <literal>download</literal>) |
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436 should be used to handle data to or from client. |
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437 </note> |
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438 </tag-desc> |
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439 |
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440 <tag-name id="s_ok"><literal>s.OK</literal></tag-name> |
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441 <tag-desc> |
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442 the <literal>OK</literal> return code |
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443 <note> |
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444 Starting from njs <link doc="../njs/changes.xml" id="njs0.2.4">0.2.4</link>, |
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445 the <link id="s_allow">s.allow()</link> method should be used instead. |
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446 </note> |
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447 </tag-desc> |
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448 |
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449 </list> |
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450 </para> |
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|
451 |
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452 </section> |
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453 |
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|
454 </section> |
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455 |
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456 </section> |
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457 |
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458 |
2176 | 459 <section id="core" name="Core"> |
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: |
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466 a <literal>Unicode string</literal> (default) and |
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467 a <literal>byte string</literal>. |
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468 </para> |
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469 |
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470 <para> |
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471 A <literal>Unicode string</literal> corresponds to an ECMAScript string |
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472 which contains Unicode characters. |
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473 </para> |
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474 |
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475 <para> |
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476 <literal>Byte strings</literal> contain a sequence of bytes. |
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477 They are used to serialize Unicode strings |
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478 to external data and deserialize from external sources. |
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479 For example, the <link id="string_toutf8">toUTF8()</link> method serializes |
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480 a Unicode string to a byte string using UTF8 encoding: |
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481 <example> |
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482 >> '£'.toUTF8().toString('hex') |
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483 'c2a3' /* C2 A3 is the UTF8 representation of 00A3 ('£') code point */ |
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484 </example> |
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485 The <link id="string_tobytes">toBytes()</link> method serializes |
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486 a Unicode string with code points up to 255 into a byte string, |
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487 otherwise, <literal>null</literal> is returned: |
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488 <example> |
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489 >> '£'.toBytes().toString('hex') |
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490 'a3' /* a3 is a byte equal to 00A3 ('£') code point */ |
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491 </example> |
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492 Only byte strings can be converted to different encodings. |
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493 For example, a string cannot be encoded to <literal>hex</literal> directly: |
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494 <example> |
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495 >> 'αβγδ'.toString('base64') |
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496 TypeError: argument must be a byte string |
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497 at String.prototype.toString (native) |
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498 at main (native) |
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499 </example> |
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500 To convert a Unicode string to hex, |
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501 first, it should be converted to a byte string and then to hex: |
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502 <example> |
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503 >> 'αβγδ'.toUTF8().toString('base64') |
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504 'zrHOss6zzrQ=' |
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505 </example> |
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506 |
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507 <list type="tag"> |
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508 |
2211
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509 <tag-name id="string_bytesfrom"><literal>String.bytesFrom(<value>array</value> |
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510 | <value>string</value>, <value>encoding</value>)</literal></tag-name> |
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511 <tag-desc> |
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512 (njs specific) Creates a byte string either from an array that contains octets, |
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513 or from an encoded string (0.2.3). |
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|
514 The encoding can be |
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|
515 <literal>hex</literal>, |
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516 <literal>base64</literal>, and |
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|
517 <literal>base64url</literal>. |
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518 <example> |
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|
519 >> String.bytesFrom([0x62, 0x75, 0x66, 0x66, 0x65, 0x72]) |
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520 'buffer' |
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|
521 |
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|
522 >> String.bytesFrom('YnVmZmVy', 'base64') |
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523 'buffer' |
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524 </example> |
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525 </tag-desc> |
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|
526 |
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527 <tag-name id="string_fromcharcode"><literal>String.fromCharCode(<value>CharCode1</value>[, ...[, |
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528 <value>CharCodeN</value>]])</literal></tag-name> |
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529 <tag-desc> |
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530 Returns a string from one or more Unicode code points. |
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|
531 <example> |
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|
532 >> String.fromCharCode(97, 98, 99, 100) |
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533 'abcd' |
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|
534 </example> |
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|
535 </tag-desc> |
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|
536 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
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changeset
|
537 <tag-name id="string_fromcodepoint"><literal>String.fromCodePoint(<value>codePoint1</value>[, ...[, |
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538 <value>codePoint2</value>]])</literal></tag-name> |
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539 <tag-desc> |
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|
540 Returns a string from one or more Unicode code points. |
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|
541 <example> |
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|
542 >> String.fromCodePoint(97, 98, 99, 100) |
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543 'abcd' |
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544 </example> |
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545 </tag-desc> |
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|
546 |
2271
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
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|
547 <tag-name id="string_charat"><literal>String.prototype.charAt(<value>index</value>)</literal></tag-name> |
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|
548 <tag-desc> |
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Described charAt, codePointAt, fromCharCode in njs.
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|
549 Returns a string representing one Unicode code unit |
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Described charAt, codePointAt, fromCharCode in njs.
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parents:
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changeset
|
550 at the specified <literal>index</literal>; |
34a1901e663d
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|
551 empty string if index is out of range. |
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552 The <literal>index</literal> can be integer |
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|
553 between 0 and 1-less-than the length of the string. |
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|
554 If no index is provided, the default is <literal>0</literal>, |
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changeset
|
555 so the first character in the string is returned. |
34a1901e663d
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|
556 </tag-desc> |
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|
557 |
34a1901e663d
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changeset
|
558 <tag-name id="string_codepointat"><literal>String.prototype.CodePointAt(<value>position</value>)</literal></tag-name> |
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|
559 <tag-desc> |
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Described charAt, codePointAt, fromCharCode in njs.
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parents:
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560 Returns a number representing the code point value of the character |
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Described charAt, codePointAt, fromCharCode in njs.
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|
561 at the given index; |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
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diff
changeset
|
562 <literal>undefined</literal> if there is no element at position. |
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Described charAt, codePointAt, fromCharCode in njs.
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parents:
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diff
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|
563 <example> |
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Described charAt, codePointAt, fromCharCode in njs.
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parents:
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|
564 >> 'ABCD'.codePointAt(3); |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
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|
565 68 |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
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parents:
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diff
changeset
|
566 </example> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
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parents:
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diff
changeset
|
567 </tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
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parents:
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diff
changeset
|
568 |
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|
569 <tag-name id="string_concat"><literal>String.prototype.concat(<value>string1</value>[, ..., |
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|
570 <value>stringN</value>])</literal></tag-name> |
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|
571 <tag-desc> |
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Added njs String object.
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572 Returns a string that contains the concatenation of specified |
8e2b3aadc3ce
Added njs String object.
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|
573 <literal>strings</literal>. |
8e2b3aadc3ce
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diff
changeset
|
574 <example> |
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diff
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|
575 >> "a".concat("b", "c") |
2214
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Added quotes to njs examples.
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changeset
|
576 'abc' |
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|
577 </example> |
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parents:
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|
578 </tag-desc> |
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579 |
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Added links to njs reference from njs Compatibility.
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580 <tag-name id="string_endswith"><literal>String.prototype.endsWith(<value>searchString</value>[, |
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|
581 <value>length</value>])</literal></tag-name> |
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582 <tag-desc> |
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583 Returns <literal>true</literal> if a string ends with the characters |
8e2b3aadc3ce
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584 of a specified string, otherwise <literal>false</literal>. |
8e2b3aadc3ce
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parents:
2183
diff
changeset
|
585 The optional <literal>length</literal> parameter is the the length of string. |
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parents:
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changeset
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586 If omitted, the default value is the length of the string. |
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Added njs String object.
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587 <example> |
8e2b3aadc3ce
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|
588 >> 'abc'.endsWith('abc') |
8e2b3aadc3ce
Added njs String object.
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changeset
|
589 true |
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changeset
|
590 >> 'abca'.endsWith('abc') |
8e2b3aadc3ce
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parents:
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changeset
|
591 false |
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diff
changeset
|
592 </example> |
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Added njs String object.
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parents:
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diff
changeset
|
593 </tag-desc> |
8e2b3aadc3ce
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parents:
2183
diff
changeset
|
594 |
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diff
changeset
|
595 <tag-name id="string_frombytes"><literal>String.prototype.fromBytes(<value>start</value>[, |
2186
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changeset
|
596 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
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changeset
|
597 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
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parents:
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diff
changeset
|
598 (njs specific) Returns a new Unicode string from a byte string |
8e2b3aadc3ce
Added njs String object.
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parents:
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changeset
|
599 where each byte is replaced with a corresponding Unicode code point. |
8e2b3aadc3ce
Added njs String object.
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|
600 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
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changeset
|
601 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
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diff
changeset
|
602 <tag-name id="string_fromutf8"><literal>String.prototype.fromUTF8(<value>start</value>[, |
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|
603 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
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|
604 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
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diff
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|
605 (njs specific) Converts a byte string containing a valid UTF8 string |
8e2b3aadc3ce
Added njs String object.
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parents:
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diff
changeset
|
606 into a Unicode string, |
8e2b3aadc3ce
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parents:
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changeset
|
607 otherwise <literal>null</literal> is returned. |
8e2b3aadc3ce
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2183
diff
changeset
|
608 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
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|
609 |
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|
610 <tag-name id="string_includes"><literal>String.prototype.includes(<value>searchString</value>[, |
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611 <value>position</value>]))</literal></tag-name> |
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612 <tag-desc> |
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|
613 Returns <literal>true</literal> if a string is found within another string, |
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614 otherwise <literal>false</literal>. |
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changeset
|
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') |
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|
620 true |
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|
621 </example> |
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|
622 </tag-desc> |
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diff
changeset
|
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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|
627 Returns the position of the first occurrence |
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parents:
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|
628 of the <literal>searchString</literal> |
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changeset
|
629 The search is started at <literal>fromIndex</literal>. |
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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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|
633 If <literal>fromIndex</literal> is lower than 0 |
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|
634 or greater than |
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|
635 <link id="string_length">String.prototype.length</link><value></value>, |
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|
636 the search starts at index <value>0</value> and |
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changeset
|
637 <value>String.prototype.length</value>. |
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Added njs String object.
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|
638 <example> |
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|
639 >> 'abcdef'.indexOf('de', 2) |
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|
640 3 |
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|
641 </example> |
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|
642 </tag-desc> |
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Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
643 |
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|
644 <tag-name id="string_lastindexof"><literal>String.prototype.lastIndexOf(<value>searchString</value>[, |
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645 <value>fromIndex</value>])</literal></tag-name> |
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Added njs String object.
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|
646 <tag-desc> |
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|
647 Returns the position of the last occurrence |
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diff
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|
648 of the <literal>searchString</literal>, |
8e2b3aadc3ce
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changeset
|
649 searching backwards from <literal>fromIndex</literal>. |
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2183
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|
650 Returns <value>-1</value> if the value is not found. |
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|
651 If <literal>searchString</literal> is empty, |
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Added njs String object.
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|
652 then <literal>fromIndex</literal> is returned. |
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diff
changeset
|
653 <example> |
8e2b3aadc3ce
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|
654 >> "nginx".lastIndexOf("gi") |
8e2b3aadc3ce
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2183
diff
changeset
|
655 1 |
8e2b3aadc3ce
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diff
changeset
|
656 </example> |
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parents:
2183
diff
changeset
|
657 </tag-desc> |
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Added njs String object.
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changeset
|
658 |
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|
659 <tag-name id="string_length"><literal>String.prototype.length</literal></tag-name> |
8e2b3aadc3ce
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|
660 <tag-desc> |
8e2b3aadc3ce
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|
661 Returns the length of the string. |
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2183
diff
changeset
|
662 <example> |
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|
663 >> 'αβγδ'.length |
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changeset
|
664 4 |
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parents:
2183
diff
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|
665 </example> |
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parents:
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|
666 </tag-desc> |
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|
667 |
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|
668 <tag-name id="string_match"><literal>String.prototype.match([<value>regexp</value>])</literal></tag-name> |
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|
669 <tag-desc> |
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|
670 Matches a string against a <literal>regexp</literal>. |
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|
671 <example> |
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|
672 >> 'nginx'.match( /ng/i ) |
2214
e029f4bc7ede
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|
673 'ng' |
2186
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changeset
|
674 </example> |
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diff
changeset
|
675 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
676 |
2212
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
677 <tag-name id="string_padend"><literal>String.prototype.padEnd(<value>length</value> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
678 [, <value>string</value>])</literal></tag-name> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
679 <tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
680 Returns a string of a specified <literal>length</literal> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
681 with the pad <literal>string</literal> applied |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
682 to the end of the specified string (0.2.3). |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
683 <example> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
684 >> '1234'.padEnd(8, 'abcd') |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
685 '1234abcd' |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
686 </example> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
687 </tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
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.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
690 [, <value>string</value>])</literal></tag-name> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
691 <tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
692 Returns a string of a specified <literal>length</literal> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
693 with the pad <literal>string</literal> applied |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
694 to the start of the specified string (0.2.3). |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
695 <example> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
696 >> '1234'.padStart(8, 'abcd') |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
697 'abcd1234' |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
698 </example> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
699 </tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
700 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
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.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
702 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
703 Returns a string |
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
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|
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.
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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.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
819 <tag-name><literal>String.prototype.toString([<value>encoding</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
820 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
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.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
823 returns a specified Unicode string or byte string as in ECMAScript. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
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 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
871 <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
|
872 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
873 encodes a URI by replacing each instance of certain characters by |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
874 one, two, three, or four escape sequences |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
875 representing the UTF-8 encoding of the character |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
876 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
877 >> encodeURI('012αβγδ') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
878 '012%CE%B1%CE%B2%CE%B3%CE%B4' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
879 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
880 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
881 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
882 <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
|
883 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
884 Encodes a URI by replacing each instance of certain characters |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
885 by one, two, three, or four escape sequences |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
886 representing the UTF-8 encoding of the character. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
887 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
888 >> encodeURIComponent('[@?=') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
889 '%5B%40%3F%3D' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
890 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
891 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
892 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
893 <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
|
894 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
895 Decodes a previously <link id="encodeuri">encoded</link> URI. |
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 >> 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
|
898 '012αβγδ' |
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="decodeuricomponent"><literal>decodeURIComponent(<value>decodedURIString</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 Decodes an encoded component of a previously encoded URI. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
905 <example> |
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906 >> decodeURIComponent('%5B%40%3F%3D') |
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907 '[@?=' |
2186
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908 </example> |
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909 </tag-desc> |
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910 |
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911 </list> |
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912 </para> |
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913 |
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914 </section> |
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915 |
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916 |
2176 | 917 <section id="core_json" name="JSON"> |
918 | |
919 <para> | |
920 The <literal>JSON</literal> object (ES 5.1) provides functions | |
921 to convert njs values to and from JSON format. | |
922 <list type="tag"> | |
923 | |
924 <tag-name><literal>JSON.parse(<value>string</value>[, | |
925 <value>reviver</value>])</literal></tag-name> | |
926 <tag-desc> | |
927 Converts a <literal>string</literal> that represents JSON data | |
928 into an njs object (<literal>{...}</literal>) or | |
929 array (<literal>[...]</literal>). | |
930 The optional <literal>reviver</literal> parameter is a function (key, value) | |
931 that will be called for each (key,value) pair and can transform the value. | |
932 </tag-desc> | |
933 | |
934 <tag-name><literal>JSON.stringify(<value>value</value>[, | |
935 <value>replacer</value>] [, <value>space</value>])</literal></tag-name> | |
936 <tag-desc> | |
937 Converts an njs object back to JSON. | |
938 The obligatory <literal>value</literal> parameter is generally a JSON | |
939 <literal>object</literal> or <literal>array</literal> that will be converted. | |
940 If the value has a <literal>toJSON()</literal> method, | |
941 it defines how the object will be serialized. | |
942 The optional <literal>replacer</literal> parameter is | |
943 a <literal>function</literal> or <literal>array</literal> | |
944 that transforms results. | |
945 The optional <literal>space</literal> parameter is | |
946 a <literal>string</literal> or <literal>number</literal>. | |
947 If it is a <literal>number</literal>, | |
948 it indicates the number of white spaces placed before a result | |
949 (no more than 10). | |
950 If it is a <literal>string</literal>, | |
951 it is used as a white space (or first 10 characters of it). | |
952 If omitted or is <literal>null</literal>, no white space is used. | |
953 </tag-desc> | |
954 </list> | |
955 </para> | |
956 | |
957 <para> | |
958 <example> | |
959 >> var json = JSON.parse('{"a":1, "b":true}') | |
960 >> json.a | |
961 1 | |
962 | |
963 >> JSON.stringify(json) | |
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964 '{"a":1,"b":true}' |
2176 | 965 |
966 >> JSON.stringify(json, undefined, 1) | |
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967 '{\n "a": 1,\n "b": true\n}' |
2176 | 968 |
969 >> JSON.stringify({ x: [10, undefined, function(){}] }) | |
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970 '{"x":[10,null,null]}' |
2176 | 971 |
972 >> JSON.stringify({"a":1, "toJSON": function() {return "xxx"}}) | |
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973 '"xxx"' |
2176 | 974 |
975 # Example with function replacer | |
976 | |
977 >> function replacer(key, value) {return (typeof value === 'string') ? undefined : value} | |
978 >>JSON.stringify({a:1, b:"b", c:true}, replacer) | |
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979 '{"a":1,"c":true}' |
2176 | 980 </example> |
981 </para> | |
982 | |
983 </section> | |
984 | |
2177 | 985 |
986 <section id="crypto" name="Crypto"> | |
987 | |
988 <para> | |
989 The Crypto module provides cryptographic functionality support. | |
990 The Crypto module object is returned by <literal>require('crypto')</literal>. | |
991 </para> | |
992 | |
993 <para> | |
994 <list type="tag"> | |
995 | |
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996 <tag-name id="crypto_createhash"><literal>crypto.createHash(<value>algorithm</value>)</literal></tag-name> |
2177 | 997 <tag-desc> |
998 Creates and returns a <link id="crypto_hash">Hash</link> object | |
999 that can be used to generate hash digests | |
1000 using the given <value>algorithm</value>. | |
1001 The algorighm can be | |
1002 <literal>md5</literal>, | |
1003 <literal>sha1</literal>, and | |
1004 <literal>sha256</literal>. | |
1005 </tag-desc> | |
1006 | |
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1007 <tag-name id="crypto_createhmac"><literal>crypto.createHmac(<value>algorithm</value>, |
2177 | 1008 <value>secret key</value>)</literal></tag-name> |
1009 <tag-desc> | |
1010 Creates and returns an <link id="crypto_hmac">HMAC</link> object | |
1011 that uses the given <value>algorithm</value> and <value>secret key</value>. | |
1012 The algorighm can be | |
1013 <literal>md5</literal>, | |
1014 <literal>sha1</literal>, and | |
1015 <literal>sha256</literal>. | |
1016 </tag-desc> | |
1017 | |
1018 </list> | |
1019 </para> | |
1020 | |
1021 | |
1022 <section id="crypto_hash" name="Hash"> | |
1023 | |
1024 <para> | |
1025 <list type="tag"> | |
1026 | |
1027 <tag-name><literal>hash.update(<value>data</value>)</literal></tag-name> | |
1028 <tag-desc> | |
1029 Updates the hash content with the given <value>data</value>. | |
1030 </tag-desc> | |
1031 | |
1032 <tag-name><literal>hash.digest([<value>encoding</value>])</literal></tag-name> | |
1033 <tag-desc> | |
1034 Calculates the digest of all of the data passed using | |
1035 <literal>hash.update()</literal>. | |
1036 The encoding can be | |
1037 <literal>hex</literal>, | |
1038 <literal>base64</literal>, and | |
1039 <literal>base64url</literal>. | |
1040 If encoding is not provided, a byte string is returned. | |
1041 </tag-desc> | |
1042 | |
1043 </list> | |
1044 </para> | |
1045 | |
1046 <para> | |
1047 <example> | |
1048 >> var cr = require('crypto') | |
1049 undefined | |
1050 | |
1051 >> cr.createHash('sha1').update('A').update('B').digest('base64url') | |
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1052 'BtlFlCqiamG-GMPiK_GbvKjdK10' |
2177 | 1053 </example> |
1054 </para> | |
1055 | |
1056 </section> | |
1057 | |
1058 | |
1059 <section id="crypto_hmac" name="HMAC"> | |
1060 | |
1061 <para> | |
1062 <list type="tag"> | |
1063 | |
1064 <tag-name><literal>hmac.update(<value>data</value>)</literal></tag-name> | |
1065 <tag-desc> | |
1066 Updates the HMAC content with the given <value>data</value>. | |
1067 </tag-desc> | |
1068 | |
1069 <tag-name><literal>hmac.digest([<value>encoding</value>])</literal></tag-name> | |
1070 <tag-desc> | |
1071 Calculates the HMAC digest of all of the data passed using | |
1072 <literal>hmac.update()</literal>. | |
1073 The encoding can be | |
1074 <literal>hex</literal>, | |
1075 <literal>base64</literal>, and | |
1076 <literal>base64url</literal>. | |
1077 If encoding is not provided, a byte string is returned. | |
1078 </tag-desc> | |
1079 </list> | |
1080 </para> | |
1081 | |
1082 <para> | |
1083 <example> | |
1084 >> var cr = require('crypto') | |
1085 undefined | |
1086 | |
1087 >> cr.createHmac('sha1', 'secret.key').update('AB').digest('base64url') | |
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1088 'Oglm93xn23_MkiaEq_e9u8zk374' |
2177 | 1089 </example> |
1090 </para> | |
1091 | |
1092 </section> | |
1093 | |
1094 </section> | |
1095 | |
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1096 <section id="njs_api_timers" name="Timers"> |
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1097 |
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1098 <para> |
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1099 |
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1100 <list type="tag"> |
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1101 |
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1102 <tag-name id="cleartimeout"><literal>clearTimeout(<value>timeout</value>)</literal></tag-name> |
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1103 <tag-desc> |
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1104 Cancels a <literal>timeout</literal> object |
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1105 created by <link id="settimeout">setTimeout()</link>. |
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1106 </tag-desc> |
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1107 |
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1108 <tag-name id="settimeout"><literal>setTimeout(<value>function</value>, |
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1109 <value>ms</value>[, <value>arg1</value>, <value>argN</value>])</literal></tag-name> |
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1110 <tag-desc> |
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1111 Calls a <literal>function</literal> |
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1112 after a specified number of <literal>milliseconds</literal>. |
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1113 One or more optional <literal>arguments</literal> |
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1114 can be passed to the specified function. |
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1115 Returns a <literal>timeout</literal> object. |
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1116 <example> |
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1117 function handler(v) |
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1118 { |
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1119 // ... |
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1120 } |
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1121 |
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1122 t = setTimeout(handler, 12); |
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1123 |
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1124 // ... |
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1125 |
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1126 clearTimeout(t); |
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1127 </example> |
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1128 </tag-desc> |
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1129 |
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1130 </list> |
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1131 </para> |
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1132 |
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1133 </section> |
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1134 |
2204
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1135 |
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1136 <section id="njs_api_fs" name="File System"> |
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1137 |
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1138 <para> |
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1139 The File System module provides operations with files. |
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1140 The module object is returned by <literal>require('fs')</literal>. |
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1141 <list type="tag"> |
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1142 |
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1143 <tag-name id="appendfilesync"><literal>appendFileSync(<value>filename</value>, |
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1144 <value>data</value>[, <value>options</value>])</literal></tag-name> |
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1145 <tag-desc> |
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1146 Synchronously appends specified <literal>data</literal> |
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1147 to a file with provided <literal>filename</literal>. |
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1148 If the file does not exist, it will be created. |
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1149 The <literal>options</literal> parameter is expected to be |
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1150 an object with the following keys: |
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1151 <list type="tag"> |
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1152 |
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1153 <tag-name><literal>mode</literal></tag-name> |
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1154 <tag-desc> |
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1155 mode option, by default is <literal>0o666</literal> |
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1156 </tag-desc> |
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1157 |
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1158 <tag-name><literal>flag</literal></tag-name> |
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1159 <tag-desc> |
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|
1160 file system <link id="njs_api_fs_flags">flag</link>, |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1161 by default is <literal>a</literal> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1162 </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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|
1163 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1164 </list> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1165 </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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|
1166 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1167 <tag-name id="readfilesync"><literal>readFileSync(<value>filename</value>[, |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1168 <value>options</value>])</literal></tag-name> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1169 <tag-desc> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1170 Synchronously returns the contents of the file |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1171 with provided <literal>filename</literal>. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1172 The <literal>options</literal> parameter holds |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1173 <literal>string</literal> that specifies encoding. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1174 If not specified, a <link id="string_tobytes">byte string</link> is returned. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1175 If <literal>utf8</literal> encoding is specified, a Unicode string is returned. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1176 Otherwise, <literal>options</literal> is expected to be |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1177 an object with the following keys: |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1178 <list type="tag"> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1179 |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1180 <tag-name><literal>encoding</literal></tag-name> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1181 <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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|
1182 encoding, by default is not specified. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1183 The encoding can be <literal>utf8</literal> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1184 </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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|
1185 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1186 <tag-name><literal>flag</literal></tag-name> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1187 <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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|
1188 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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|
1189 by default is <literal>r</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1190 </tag-desc> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1191 |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1192 </list> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1193 <example> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1194 >> var fs = require('fs') |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1195 undefined |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1196 >> var file = fs.readFileSync('/file/path.tar.gz') |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1197 undefined |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1198 >> var gzipped = /^\x1f\x8b/.test(file); gzipped |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1199 true |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1200 </example> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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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diff
changeset
|
1202 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1203 <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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diff
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|
1204 <value>data</value>[, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1205 <value>options</value>])</literal></tag-name> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1206 <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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|
1207 Synchronously writes <literal>data</literal> to a file |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1208 with provided <literal>filename</literal>. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1209 If the file does not exist, it will be created, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1210 if the file exists, it will be replaced. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1211 The <literal>options</literal> parameter is expected to be |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1212 an object with the following keys: |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1213 <list type="tag"> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1214 <tag-name><literal>mode</literal></tag-name> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1215 <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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|
1216 mode option, by default is <literal>0o666</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1217 </tag-desc> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
1218 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1219 <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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|
1220 <tag-desc> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1221 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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|
1222 by default is <literal>w</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1223 </tag-desc> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1224 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1225 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1226 <example> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1227 >> var fs = require('fs') |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1228 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1229 >> var file = fs.writeFileSync('hello.txt', 'Hello world') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1230 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1231 </example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1232 </tag-desc> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1233 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1234 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1235 </para> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1236 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1237 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1238 <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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|
1239 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1240 <para> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1241 The <literal>flag</literal> option can accept the following values: |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1242 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1243 <list type= "bullet" compact="no"> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1244 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1245 <listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1246 <literal>a</literal>—open a file for appending. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1247 The file is created if it does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1248 </listitem> |
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Documented fileSystem methods in njs.
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|
1249 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
1250 <listitem> |
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Documented fileSystem methods in njs.
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|
1251 <literal>ax</literal>—the same as <literal>a</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1252 but fails if the file already exists |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1253 </listitem> |
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Documented fileSystem methods in njs.
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|
1254 |
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Documented fileSystem methods in njs.
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|
1255 <listitem> |
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Documented fileSystem methods in njs.
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|
1256 <literal>a+</literal>—open a file for reading and appending. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
1257 If the file does not exist, it will be created |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1258 </listitem> |
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Documented fileSystem methods in njs.
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|
1259 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1260 <listitem> |
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Documented fileSystem methods in njs.
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|
1261 <literal>ax+</literal>—the same as <literal>a+</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1262 but fails if the file already exists |
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Documented fileSystem methods in njs.
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|
1263 </listitem> |
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Documented fileSystem methods in njs.
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changeset
|
1264 |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1265 <listitem> |
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Documented fileSystem methods in njs.
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|
1266 <literal>as</literal>—open a file for appending in synchronous mode. |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1267 If the file does not exist, it will be created |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1268 </listitem> |
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Documented fileSystem methods in njs.
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|
1269 |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1270 <listitem> |
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Documented fileSystem methods in njs.
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changeset
|
1271 <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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|
1272 in synchronous mode. |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
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changeset
|
1273 If the file does not exist, it will be created |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1274 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
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changeset
|
1275 |
001f2d905fd9
Documented fileSystem methods in njs.
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changeset
|
1276 <listitem> |
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Documented fileSystem methods in njs.
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changeset
|
1277 <literal>r</literal>—open a file for reading. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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1278 An exception occurs if the file does not exist |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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1279 </listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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1280 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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|
1281 <listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
1282 <literal>r+</literal>—open a file for reading and writing. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
1283 An exception occurs if the file does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
1284 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
1285 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1286 <listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
1287 <literal>rs+</literal>—open a file for reading and writing |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
1288 in synchronous mode. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
1289 Instructs the operating system to bypass the local file system cache |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1290 </listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
1291 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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|
1292 <listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
1293 <literal>w</literal>—open a file for writing. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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1294 If the file does not exist, it will be created. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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|
1295 If the file exists, it will be replaced |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
changeset
|
1296 </listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
1297 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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|
1298 <listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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|
1299 <literal>wx</literal>—the same as <literal>w</literal> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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1300 but fails if the file already exists |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1301 </listitem> |
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Documented fileSystem methods in njs.
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parents:
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|
1302 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1303 <listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1304 <literal>w+</literal>—open a file for reading and writing. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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1305 If the file does not exist, it will be created. |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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1306 If the file exists, it will be replaced |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1307 </listitem> |
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Documented fileSystem methods in njs.
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parents:
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|
1308 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1309 <listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
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changeset
|
1310 <literal>wx+</literal>—the same as <literal>w+</literal> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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1311 but fails if the file already exists |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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1312 </listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1313 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1314 </list> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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1315 </para> |
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parents:
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|
1316 |
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Documented fileSystem methods in njs.
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parents:
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|
1317 </section> |
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Documented fileSystem methods in njs.
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parents:
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|
1318 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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1319 </section> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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1320 |
2176 | 1321 </section> |
1322 | |
2175
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1323 </article> |