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Run results for:
Math.random vs Date.now
Which is best for generating a unique key?
Go to the benchmark
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Embed Benchmark Result
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 18_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 18
Operating system:
iOS 18.3
Device Platform:
Mobile
Date tested:
one year ago
Benchmark engine:
Benchmark.js
Math.random
437.6M/s
Date.now
36.6M/s
View exact numbers
Test name
Executions per second
✓
Math.random
437,557,184 Ops/sec
Date.now
36,648,448 Ops/sec
Tests:
Math.random
Math.random()
Date.now
Date.now()