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Run results for:
empty an array in JavaScript - splice vs setting length faster
Based on question on http://stackoverflow.com/questions/1232040/how-do-i-empty-an-array-in-javascript
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=615228" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0
Browser:
Firefox 138
Operating system:
Windows
Device Platform:
Desktop
Date tested:
10 months ago
Test name
Executions per second
Set length to zero
31317630.0 Ops/sec
Splice
12568153.0 Ops/sec
Script Preparation code:
var size = 10000; var arr = []; for (var i = 0; i < size; i++){ arr.push(i); }
Tests:
Set length to zero
arr.length = 0;
Splice
arr.splice(0, arr.length);