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Array Concat vs Spread

Benchmark created by mturnwall on October 13, 2018

Setup

const arr1 = [30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9];
  const arr2 = [30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9];
  const arr3 = [30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9];
  const arr4 = [30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9, 30, 20, 15, 12, 9];

Test runner

Ready to run.

Testing in
Test		Ops/sec
Concat	`let combinedArr = arr1.concat(arr2, arr3, arr4);`	ready
Spread	`let combinedArr = [...arr1, ...arr2, ...arr3, ...arr4];`	ready

Revisions

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

Revision 1: published by mturnwall on October 13, 2018