Fast Array Foreach

JavaScript performance comparison

Revision 93 of this test case created by Dennis

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
    // Populate the base array
    var arr = [];
    for (var i = 0; i < 1000; i++) {
      arr[i] = i;
    }
  
    function someFn(i) {
      return i * 3 * 8;
    }
  
    var forEachFn = function(arrayLike, fn) {
      var i = 0,
        len = arrayLike.length;
      for (; i < len; i++) {
        fn(arrayLike[i]);
      }
    };

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Own ForEach
forEachFn(arr, function(item) {
  someFn(item);
})
pending…
For
for (var i = 0, len = arr.length; i < len; i++) {
  someFn(arr[i]);
}
pending…

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