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Run results for:
Compare !array.length vs array.length === 0
Compare both ways of test an empty array
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<iframe src="https://measurethat.net/Embed?id=510256" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Mobile Safari/537.36
Browser:
Chrome Mobile 121
Operating system:
Android
Device Platform:
Mobile
Date tested:
2 years ago
Test name
Executions per second
!array.length
57874.9 Ops/sec
arr.length === 0
53369.3 Ops/sec
Script Preparation code:
var arr = [];
Tests:
!array.length
if (!arr.length) { console.log(1); } else { console.log(0); }
arr.length === 0
if (arr.length === 0) { console.log(1); } else { console.log(0); }