Slice vs Substr vs Substring vs [ ] Methods

JavaScript performance comparison

Revision 49 of this test case created by Gilad

Info

This is comparing the runtimes of substr, substring, and slice in a string for large (10000 character) string size.

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var str = "3q7EkWBFOElREkFwpC7wQ1OzeMT44KzBxPineiWC75uj3gtwxrVH2HaeXw1lrh8WvauFb1yhCqHLu";
};
</script>

Test runner

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Testing in unknown unknown
Test Ops/sec
slice
str.slice(-1);
pending…
substr
str.substr(-1);
pending…

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