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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=573994" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:134.0) Gecko/20100101 Firefox/134.0
Browser:
Firefox 134
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
indexOf
20172.3 Ops/sec
includes
21426.7 Ops/sec
find
3551.7 Ops/sec
findIndex
3595.4 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);