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Run results for:
Array isArray vs instanceof
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<iframe src="https://measurethat.net/Embed?id=626332" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:148.0) Gecko/20100101 Firefox/148.0
Browser:
Firefox 148
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one month ago
Test name
Executions per second
Instanceof
35069208.0 Ops/sec
isArray
20190894.0 Ops/sec
Script Preparation code:
var test = [1,2,3,4]; var c;
Tests:
Instanceof
if (test instanceof Array) { c++; }
isArray
if (Array.isArray(test)) { c++; }