Run results for: forEach mutate object vs map spread copy v2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 Edg/126.0.0.0

Browser: Chrome 126

Operating system: Windows

Device Platform: Desktop

Date tested: 6 months ago

Test name	Executions per second
map	1916142.4 Ops/sec
forEach	2036206.0 Ops/sec

Tests:

map
const objects = [ { a: 'XzWtv', b: 'sFqrG', c: 'qCbnP' }, { a: 'yjkAu', b: 'vMhlE', c: 'xPqro' }, { a: 'wNztX', b: 'gDypR', c: 'iHklL' }, { a: 'mQjvs', b: 'dKzpt', c: 'aVbcO' }, { a: 'bUefZ', b: 'cRiyG', c: 'uTqxs' } ] objects.map(el => ({...el, d: Math.random()}))
forEach
const objects = [ { a: 'XzWtv', b: 'sFqrG', c: 'qCbnP' }, { a: 'yjkAu', b: 'vMhlE', c: 'xPqro' }, { a: 'wNztX', b: 'gDypR', c: 'iHklL' }, { a: 'mQjvs', b: 'dKzpt', c: 'aVbcO' }, { a: 'bUefZ', b: 'cRiyG', c: 'uTqxs' } ] objects.forEach(el => {el.d = Math.random()})