Javascript array concat vs push (v9)

Revision 9 of this benchmark created on

Setup

var arr1 = []
    var arr2 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]

Test runner

Ready to run.

Testing in
TestOps/sec
concat
arr1 = [0, 9, 8, 7, 6, 5, 4, 3, 2, 1];
arr2 = [];
for (var i = 0; i < arr1.length; i++) {
  arr2 = arr2.concat(arr1);
}
ready
push
arr1 = [0, 9, 8, 7, 6, 5, 4, 3, 2, 1];
arr2 = [];
for (var i = 0; i < arr1.length; i++) {
  for (var j = 0; j < arr1.length; j++) {
    arr2.push(arr1[j])
  }
}
ready

Revisions

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