Run results for: for loop vs. .map

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0

Browser: Firefox 134

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

for loop

29.3M/s

.map

21.3M/s

View exact numbers

Test name	Executions per second
✓ for loop	29,347,646 Ops/sec
.map	21,343,702 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 = []; for (let i=0; i<array.length; i++) { newArray.push(manipulateFn(array[i])); }