Run results for: Math.random vs crypto.getRandom

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2.1 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Math.random()

21.0M/s

crypto.getRandomValues()

3.7M/s

View exact numbers

Test name	Executions per second
✓ Math.random()	20,997,206 Ops/sec
crypto.getRandomValues()	3,719,358 Ops/sec

Tests:

Math.random()
Math.random()
crypto.getRandomValues()
crypto.getRandomValues(new Uint32Array(1))[0] / 4294967296