Javascript array concat vs push

JavaScript performance comparison

Revision 71 of this test case created by Durp

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var arr1 = [ 1, 2, 3 ];
  var arr2 = [ 4, 5, 6 ];

};
</script>

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
concat
for (i = 10000; i > 0; i--) {
  arr1 = arr1.concat( arr2 );
}
pending…
push
for (i = 10000; i > 0; i--) {
  Array.prototype.push.apply( arr1, arr2 );
}
pending…

Compare results of other browsers

Revisions

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

0 Comments