caching length (v64)

Revision 64 of this benchmark created on

Setup

var arr = [];
    for (var i = 0; i < 1000; i++) {
      arr[i] = Math.random();
    }

Test runner

Ready to run.

Testing in
TestOps/sec
Cached Inside
for (var i = 0, len = arr.length; i < len; i++) {
  arr[i] *= 2;
}
ready
Prefix Increment
for (var i = 0; i < arr.length; i++) {
  arr[i] *= 2;
}
ready
Prefix + Cached Inside
for (var i = 0, len = arr.length; i < len; i++) {
  arr[i] *= 2;
}
ready
Array.forEach
arr.forEach(function(element, i) {
  arr[i] = element * 2;
});
ready
Cached Outside
var maxI = arr.length;
for(var i = 0; i < maxI; i++) {
  arr[i] *= 2;
}
ready

Revisions

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