Run results for: for loop vs. .map anon2

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

.map

90/s

for loop

88/s

for loop with func

43/s

View exact numbers

Test name	Executions per second
✓ .map	90 Ops/sec
for loop	88 Ops/sec
for loop with func	43 Ops/sec

Script Preparation code:

// Create sample data
var array = [1,2,3,4,5,6,7,8,9,0];
for (let i = 0; i< 100_000; i++) {
	array.push(i % 10);
}

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(i *2 * 3); }
for loop with func
var newArray = []; for (let i=0; i<array.length; i++) { newArray.push(manipulateFn(i)); }