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Run results for:
lodash isUndefined vs typeof === undefined (take 3)
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=617829" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Safari/605.1.15
Browser:
Safari 18
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
7 months ago
Test name
Executions per second
lodash.isUndefined
690808768.0 Ops/sec
triple equals
636395264.0 Ops/sec
typeof
633361088.0 Ops/sec
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
var foo;
Tests:
lodash.isUndefined
if (_.isUndefined(foo)) { foo; }
triple equals
if (foo === undefined) { foo; }
typeof
if (typeof foo === 'undefined') { foo; }