Loop vs map vs forEach

JavaScript performance comparison

Revision 50 of this test case created by Jack Wilsdon

Preparation code


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

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
forEach
var result = [];

range.forEach(function(val) {
    doSomething();
});
pending…
Map
var result = range.map(function(val) { doSomething(); });
pending…
Loop
var result = [];

for (var i = 0; i < range.length; i++) {
    doSomething();
}
pending…

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Revisions

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