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Run results for:
JS Array IndexOf vs includes vs findIndex vs find
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<iframe src="https://measurethat.net/Embed?id=553120" 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/128.0.0.0 Safari/537.36
Browser:
Chrome 128
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
indexOf
103197.2 Ops/sec
includes
103548.8 Ops/sec
find
1687.5 Ops/sec
findIndex
1782.1 Ops/sec
Script Preparation code:
var arr = []; var i = 0; while (i <= 1E5) arr[i] = i++;
Tests:
indexOf
const index = arr.indexOf(1E5);
includes
const included = arr.includes(1E5);
find
const item = arr.find(item => item == 1E5);
findIndex
const index = arr.findIndex(item => item == 1E5);