Run results for: JavaScript Array concat vs spread vs push

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Tests:

Concat
const first = Array(1000).fill(null).map((_, i) => i); const second = Array(1000).fill(null).map((_, i) => i + 1000); const third = first.concat(second);
Spread
const first = Array(1000).fill(null).map((_, i) => i); const second = Array(1000).fill(null).map((_, i) => i + 1000); const third = [...first, ...second];
Push
const first = Array(1000).fill(null).map((_, i) => i); const second = Array(1000).fill(null).map((_, i) => i + 1000); const third = []; third.push(...first); third.push(...second);