.replace() vs. .split().join() vs .replaceAll()

JavaScript performance comparison

Revision 46 of this test case created

Info

A solution for replacement of strings.

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var mystring = 'okay-this-is-a-string';
};
</script>

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Testing in unknown unknown
Test Ops/sec
.replace(/\-/g,'_')
result = mystring.replace(/\-/g, '_');
pending…
.replace(new RegExp("-","gm"),"_")
result = mystring.replace(new RegExp("-", "gm"), "_");
pending…
.split('-').join('_')
result = mystring.split('-').join('_');
pending…

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