Run results for: map vs for...of vs for

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.127 Safari/537.36 OPR/60.3.3004.55692

Browser: Opera 60

Operating system: Linux

Device Platform: Desktop

Date tested: 8 months ago

Benchmark engine: Benchmark.js

for of loop

267K/s

map

233K/s

for i loop

89K/s

View exact numbers

Script Preparation code:

var data = [1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,];

Tests:

map
data.map(function (number) { return number * 2});
for i loop
let items = []; for(let i = 0; i < data.length; i++){ items.push(data[i] * 2); }
for of loop
let items = []; for(let item of data){ items.push(item * 2); }