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Run results for:
findIndex vs includes vs map & indexOf
Comparing performance of: findIndex vs includes vs map and indexOf
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<iframe src="https://measurethat.net/Embed?id=601297" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36
Browser:
Chrome 135
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
findIndex
7.7M/s
includes
7.6M/s
map and indexOf
12K/s
View exact numbers
Test name
Executions per second
✓
findIndex
7,661,769 Ops/sec
includes
7,617,820 Ops/sec
map and indexOf
11,947 Ops/sec
Script Preparation code:
var arr = new Array(15000); arr.fill({ id: 0 }); arr = arr.map((el, idx) => el.id = idx); var foo = Math.floor(Math.random() * 15000);
Tests:
findIndex
var index = arr.indexOf(foo);
includes
var index = arr.includes(foo);
map and indexOf
var index = arr.map(o => o.id).indexOf(foo);