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Run results for:
index vs lastindexof
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<iframe src="https://measurethat.net/Embed?id=532997" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/126.0.6478.153 Mobile/15E148 Safari/604.1
Browser:
Chrome Mobile iOS 126
Operating system:
iOS 17.5
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
lastIndexOf
32103612.0 Ops/sec
indexOf
412327840.0 Ops/sec
Tests:
lastIndexOf
var str = "Hello world, welcome to the universe."; var n = str.lastIndexOf("welcome");
indexOf
var str = "Hello world, welcome to the universe."; var n = str.indexOf("welcome");