indexOf vs some vs for

JavaScript performance comparison

Revision 15 of this test case created by Karel Faille

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var testArray = [];
  for(var i = 0; i < 10000; ++i) {
      testArray.push(i);
  }

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
indexOf ~
var res = !~testArray.indexOf(50);
pending…
for in
var res = false;

for(var i in testArray) {
  if (i === 50) {
    res = true;
    break;
  }
}
pending…

Revisions

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