Benchmark: for loop vs. .map (6/17/2026)

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
const newArray = array.map(i => manipulateFn(i));
for loop
const newArray = []; for (let index = 0; index < array.length; index++) { newArray.push(manipulateFn(array[index])); }

Rendered benchmark preparation results:

Previous results

Test case name	Result
.map
for loop

Latest run results:

Run details: (Test run date: 3 days ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:148.0) Gecko/20100101 Firefox/148.0

Browser/OS: Firefox 148 on Windows

Test name	Executions per second
.map	18693144.0 Ops/sec
for loop	10320423.0 Ops/sec

for loop vs. .map (6/17/2026) (version: 1)