Run results for: spread- concat-unshift-twa-arrays

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

arraySpread

38.6M/s

arrayUnshift

15.6M/s

arrayConcat

11.8M/s

View exact numbers

Script Preparation code:

const array = [1, 2, 3];
const array2 = [4, 5];

Tests:

arrayUnshift
const array = [1, 2, 3]; const array2 = [4, 5]; array.unshift(...array2);
arrayConcat
let array = [1, 2, 3]; const array2 = [4, 5]; array = array.concat(array2)
arraySpread
let array = [1, 2, 3]; const array2 = [4, 5]; array = [...array, ...array2]