htmlEncodeRegEx

JavaScript performance comparison

Revision 2 of this test case created by

Preparation code 

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

      

      <script>

        Benchmark.prototype.setup = function() {

          
  var html = document.body.innerHTML;
  var map = {
    "&": "&amp;",
    "'": "&#39;",
    '"': "&quot;",
    "<": "&lt;",
    ">": "&gt;"
  };
  var tempElement = $(document.createElement("div"));
  
  var arr = [
    [/&/g, '&amp;'],
    [/'/g, '&#39;'],
    [/"/g, '&quot;'],
    [/</g, '&lt;'],
    [/>/g, '&gt;']
  ];
  var better_map_fn = function(c) {
    return map[c];
  };
  var el_10 = document.createElement('div');

        
  };


      
</script>

Preparation code output

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
multiple replace() 
return html.replace(/&/g, '&amp;').replace(/"/g, '&quot;').replace(/'/g, '&#39;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
 pending…
single replace with map 
return html.replace(/[&"'\<\>]/g, function(c) {
  return map[c];
});
 pending…
single replace with switch 
return html.replace(/[&"'\<\>]/g, function(c) {
  switch (c) {
  case "&":
    return "&amp;";
  case "'":
    return "&#39;";
  case '"':
    return "&quot;";
  case "<":
    return "&lt;";
  case ">":
    return "&gt;";
  }

});
 pending…
use jQuery 
return $('<div/>').text(html).html();
 pending…
use jQuery with pre-created element 
return tempElement.text(html).html();
 pending…
string replace with array map 
var t, i, _html = html;
for(var t, i = 0; t = arr[i]; i++) {
  _html = _html.replace(t[0], t[1]);
}
return _html;
 pending…
better map replace 
return html.replace(/[&"'\<\>]/g, better_map_fn);
 pending…
vanilla element method 
var el = document.createElement('div');
el.appendChild(document.createTextNode(html));
return el.innerHTML;
 pending…
vanilla element method, with precreated element 
el_10.innerHTML = '';
el_10.appendChild(document.createTextNode(html));
return el_10.innerHTML;
 pending…

Compare results of other browsers

Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL.

0 Comments