Run results for: Merging two arrays test

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36

Browser: Chrome 141

Operating system: Windows

Device Platform: Desktop

Date tested: 10 months ago

array.push spread

34.0M/s

Array.prototype.push for of

31.5M/s

spread operator

19.9M/s

array.concat

7.4M/s

View exact numbers

Tests:

Array.prototype.push for of
const base = [1]; const added = [1, 2, 3]; const combined = base; for (const item of added) { combined.push(item) }
array.push spread
const base = [1]; const added = [1, 2, 3]; const combined = base.push(...added);
array.concat
const base = [1]; const added = [1, 2, 3]; const combined = base.concat(added);
spread operator
const base = [1]; const added = [1, 2, 3]; const combined = [...base, ...added];