Run results for: for loop vs. .map with size

Run details:

User agent: Mozilla/5.0 (Linux; Android 12; NOH-AN00 Build/HUAWEINOH-AN00; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.196 Mobile Safari/537.36 mailapp/6.6.4

Browser: Chrome Mobile 114

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

for loop

7.6M/s

.map

4.3M/s

View exact numbers

Test name	Executions per second
✓ for loop	7,568,896 Ops/sec
.map	4,332,702 Ops/sec

Script Preparation code:

// Create sample data
var array = [1,2,3,4,5,6,7,8,9,0];

var manipulateFn = num => {
	return num * 2 * 3;
}

Tests:

.map
var newArray = array.map( i => manipulateFn(i));
for loop
var newArray = new Array(array.length); for (let i=0; i<array.length; i++) { //newArray.push(manipulateFn(array[i])); newArray[i]=manipulateFn(array[i]) }