Run results for: for loop vs Array.some vs for of

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser: Chrome 142

Operating system: Windows

Device Platform: Desktop

Date tested: 9 months ago

Benchmark engine: Benchmark.js

some

3.1M/s

for of

2.1M/s

for

457K/s

View exact numbers

Script Preparation code:

var array = Array.from(Array(1000), (_, i) => i);

Tests:

for
var result = false; for (let i = 0; i < array.length; ++i) { const item = array[i]; if (item > 500) { result = true; break; } }
some
let result = array.some(item => item > 500);
for of
let result = false; for (const item of array) { if (item > 500) { result = true; break; } }