Javascript array concat vs push

Benchmark created 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 = 10000; i > 0; i--) {
  arr1 = arr1.concat(arr2);
}
ready
push
for (i = 10000; i > 0; i--) {
  Array.prototype.push.apply(arr1, arr2);
}
ready
push 2
for (i = 10000; i > 0; i--) {
  arr1.push(...arr2);
}
ready

Revisions

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