Run results for: array for vs some (test)

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 119

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

array some

154.0M/s

array for

112.9M/s

View exact numbers

Test name	Executions per second
✓ array some	154,016,512 Ops/sec
array for	112,880,944 Ops/sec

HTML Preparation code:

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.core.js"></script>

Tests:

array for
var a = ['hello', 'a', 'bc']; function find(target, arr) { for (let i = 0; i < arr.length; i++) { if (target === arr[i]) return true; } return false; } var b = find('bc', a);
array some
var a = ['hello', 'a', 'bc']; var b = a.some(item => item === 'bc');