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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=495088" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Browser:
Chrome 120
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
includes
3.4M/s
findIndex
3.3M/s
map and indexOf
22K/s
View exact numbers
Test name
Executions per second
✓
includes
3,398,348 Ops/sec
findIndex
3,282,859 Ops/sec
map and indexOf
22,357 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);