regexp vs toLowerCase and indexOf

JavaScript performance comparison

Revision 138 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var str = "hello World!";
    var filterS = "worl";
    var regexpS = new RegExp(filterS, 'i');
    var matchFound = 0;
};
</script>

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Testing in unknown unknown
Test Ops/sec
Regexp
if (regexpS.test(str)) {
   matchFound += 1;
}
pending…
indexOf
if (str.toLowerCase().indexOf(filterS) >= 0) {
   matchFound += 1;
}
pending…

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