RegExp vs indexOf

JavaScript performance comparison

Revision 12 of this test case created

Info

Compare speed of Regex with indexOf for simple string comparison

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var isPresent = new RegExp('msn');
    var url = "http://create.leadid.local?pid=2iuegu12&msn=23uigqwud";
   
};
</script>

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Testing in unknown unknown
Test Ops/sec
Regex

if ( isPresent.test(url) ) {
  // no op
}
pending…
indexOf
if ( -1 !== url.indexOf('msn')) {
  // no op
}
pending…

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