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Run results for:
Array: Object.prototype.toString vs instanceof vs Array.isArray
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<iframe src="https://measurethat.net/Embed?id=596760" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; CrOS x86_64 14541.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Browser:
Chrome 126
Operating system:
Chrome OS 14541.0.0
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
toString
2837923.2 Ops/sec
instanceof
2514340.2 Ops/sec
isArray
3258421.0 Ops/sec
Script Preparation code:
var {toString} = Object.prototype; var arr = [1, 2, 3, 4]; var c =0;
Tests:
toString
if(toString.call(arr) === '[object Array]') {c++}
instanceof
if(arr instanceof Array) {c++}
isArray
if(Array.isArray(arr)) {c++}