Run results for: map vs forEach/push (1000 elements) v2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0

Browser: Firefox 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

map

166K/s

forEach/push

129K/s

View exact numbers

Test name	Executions per second
✓ map	165,620 Ops/sec
forEach/push	129,439 Ops/sec

Script Preparation code:

window.arr = Array.from({ length: 1000 }, (_, i) => `Option ${i + 1}`);

Tests:

map
const newArr = window.arr.map(element => ({ label: element, value: element }));
forEach/push
const newArr = []; newArr.push({ label: 'User', value: 'User' }) window.arr.forEach(element => { newArr.push({ label: element, value: element }) })