MeasureThat.net

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

Which is best for generating a unique key?

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.106
Opera 91
Windows
Desktop
2 years ago
Test name Executions per second
Math.random().toString(36).substring(2, 12) 3868094.2 Ops/sec
Date.now() 6856957.0 Ops/sec
Tests:

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

  • Date.now()

;