Javascript array concat vs push (v300)

Revision 300 of this benchmark created by Eugene Maslovich on

Setup

var arr1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
  var arr2 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
  var arr3 = []

Test runner

Ready to run.

Testing in
TestOps/sec
concat
for (i = 10; i > 0; i--) {
  arr1 = arr1.concat(0);
}
ready
push
for (i = 10; i > 0; i--) {
  arr1 = arr1.slice();
  arr1.push(0);
}
ready
push call
for (i = 10; i > 0; i--) {
  arr1 = arr1.slice();
  Array.prototype.push.call(arr1, 0);
}
ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.