Benchmark: for in loop vs. .map

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 val of array) { newArray.push(manipulateFn(val)); }

Rendered benchmark preparation results:

Previous results

Test case name	Result
.map
for loop

Latest run results:

Run details: (Test run date: 2 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0

Browser/OS: Firefox 140 on Linux

Test name	Executions per second
.map	42540928.0 Ops/sec
for loop	17214484.0 Ops/sec

Related benchmarks:

for in loop vs. .map (version: 1)