DecodeURI

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This is useful for incoming form data. Important here is that spaces turn into '%20', not '+'. 


  <?sjs
    var enc_uri = encodeURI("Javascript Rules! ");
    document.writeln(" encoded is "+enc_uri);
    var de_uri = decodeURI(enc_uri);
    document.writeln(" decoded is "+de_uri);
  ?>

Result: 

  encoded is Javascript%20Rules!%20
  decoded is Javascript Rules!

DecodeURI() can take you to a new level of internationalization irritation with the following character set problem. 


  <html>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <body>
  <?sjs
    var de_uri = decodeURI(enc_uri);
    document.writeln(" decoded is "+de_uri);
    var de_uri =  decodeURI("%E4%BC%81%E4%B8%9A");
    document.writeln(" decoded is "+de_uri);
  ?>
  <script>
     var de_uri = decodeURI("%E4%BC%81%E4%B8%9A");
     document.writeln(" decoded is "+de_uri);
  </script>
  </body>

Result: 

  decoded is ��
  decoded is 企业
Retrieved from "http://davidkellogg.com/wiki/DecodeURI"
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