Run results for: Hungry js map vs forEach

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 26_3_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/145.0.7632.108 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 145

Operating system: iOS 26.3.0

Device Platform: Mobile

Date tested: 5 months ago

forEach

497.3M/s

map

59.2M/s

View exact numbers

Test name	Executions per second
✓ forEach	497,333,984 Ops/sec
map	59,229,580 Ops/sec

Script Preparation code:

// Create sample data
var array = [];
array.forEach( i => array.push(i) );

var manipulateFn = num => {
	return num * 2 * 3;
}

Tests:

map
var newArray = array.map( i => manipulateFn(i));
forEach
array.forEach( i => { manipulateFn(i); });