code/.docs/prototype_Global/function_String.random.html

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  67         <big><tt>Global.String.random&nbsp;(len,&nbsp;mode)</tt></big><br>
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  73         creates a random string (numbers and chars) <br><br>
  74
  75         <ul>
  76                 <li><b>Parameter</b> <code>len</code>:<br/>
  77 length of key<li><b>Parameter</b> <code>mode</code>:<br/>
  78 determines which letters to use. null or 0 = all letters; 1 = skip 0, 1, l and o which can easily be mixed with numbers; 2 = use numbers only
  79                 <li><b>Returns</b><br>
  80 random string
  81
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  93         <td>Sourcecode in /root/helma-1.6.1/modules/core/String.js:
  94         <pre><font color="#aaaaaa">630:</font>   String.random = function(len, mode) {
  95 <font color="#aaaaaa">631:</font>       if (mode == 2) {
  96 <font color="#aaaaaa">632:</font>           var x = Math.random() * Math.pow(10,len);
  97 <font color="#aaaaaa">633:</font>           return Math.floor(x);
  98 <font color="#aaaaaa">634:</font>       }
  99 <font color="#aaaaaa">635:</font>       var keystr = String.NULL;
 100 <font color="#aaaaaa">636:</font>       for (var i=0; i&lt;len; i++) {
 101 <font color="#aaaaaa">637:</font>           var x = Math.floor((Math.random() * 36));
 102 <font color="#aaaaaa">638:</font>           if (mode == 1) {
 103 <font color="#aaaaaa">639:</font>  <font color="#33aa00">            // skip 0,1
 104 <font color="#aaaaaa">640:</font>  </font>            x = (x&lt;2) ? x + 2 : x;
 105 <font color="#aaaaaa">641:</font>  <font color="#33aa00">            // don't use the letters l (charCode 21+87) and o (24+87)
 106 <font color="#aaaaaa">642:</font>  </font>            x = (x==21) ? 22 : x;
 107 <font color="#aaaaaa">643:</font>              x = (x==24) ? 25 : x;
 108 <font color="#aaaaaa">644:</font>          }
 109 <font color="#aaaaaa">645:</font>          if (x&lt;10) {
 110 <font color="#aaaaaa">646:</font>              keystr += String(x);
 111 <font color="#aaaaaa">647:</font>          }    else    {
 112 <font color="#aaaaaa">648:</font>              keystr += String.fromCharCode(x+87);
 113 <font color="#aaaaaa">649:</font>          }
 114 <font color="#aaaaaa">650:</font>      }
 115 <font color="#aaaaaa">651:</font>      return keystr;
 116 <font color="#aaaaaa">652:</font>  }
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