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Run results for:
Crypto.randomUUID() vs new Date().getTime()
In real world example new Date() will be unique date. In this case its same days
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<iframe src="https://measurethat.net/Embed?id=586029" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Android 15; Mobile; rv:133.0) Gecko/133.0 Firefox/133.0
Browser:
Firefox Mobile 133
Operating system:
Android
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
date.getTime()
148372.8 Ops/sec
crypto.randomUUID()
11845.1 Ops/sec
Script Preparation code:
var dates = Array.from({length: 200}, () => new Date())
Tests:
date.getTime()
dates.map(date => date.getTime())
crypto.randomUUID()
dates.map(() => crypto.randomUUID())