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Run results for:
In operator vs Object Accessors
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<iframe src="https://measurethat.net/Embed?id=558987" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Browser:
Chrome 129
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
in
210458.2 Ops/sec
Object accessor
353293.2 Ops/sec
Tests:
in
const a = { b: "c" } if ("b" in a) { console.log(a.b) }
Object accessor
const a = { b: "c" } if (a.b) { console.log(a.b) }