for loop vs Array.prototype.map() (v6)

Revision 6 of this benchmark created on

Description

Calculate lenght of array only once in for loop

Setup

var arr = Array.apply(null, Array(1000)).map(Number.prototype.valueOf, 0);
    var newArr = [];
    
    function addOne(val) {
      return val + 1;
    }

Test runner

Ready to run.

Testing in
TestOps/sec
for loop
var len = arr.length;
for (var i = 0, len; i < len; i++) {
  newArr.push(addOne(arr[i]));
}
ready
map
newArr = arr.map(addOne)
ready

Revisions

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