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Run results for: Math.random().toString(36).substring(2, 12) vs Date.now()

Which is best for generating a unique key?

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Chrome 133
Mac OS X 10.15.7
Desktop
2 months ago
Test name Executions per second
Math.random().toString(36).substring(2, 12) 6236113.5 Ops/sec
Date.now() 30210170.0 Ops/sec
Tests:

  • Math.random().toString(36).substring(2, 12)

  • Date.now()