Run results for: Array push vs concat vs push + flat to merge to arrays

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Push

63.2M/s

Array.prototype.concat

15.6M/s

push + flat

7.0M/s

View exact numbers

Tests:

Array.prototype.concat
let params1 = [ "hello", true, 7 ]; const params2 = [ "hello", true, 7 ]; params1 = params1.concat(params2);
push + flat
let params1 = [ "hello", true, 7 ]; const params2 = [ "hello", true, 7 ]; params1.push(params2) params1 = params1.flat()
Push
let params1 = [ "hello", true, 7 ]; const params2 = [ "hello", true, 7 ]; params1.push(...params2);