Run results for: crypto.randomUUID() vs crypto.getRandomValues()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:134.0) Gecko/20100101 Firefox/134.0

Browser: Firefox 134

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

uuid

4K/s

random

2K/s

View exact numbers

Test name	Executions per second
✓ uuid	4,415 Ops/sec
random	1,780 Ops/sec

Script Preparation code:

iterations = 1000

Tests:

uuid
const arr = []; for (let i = 0; i < iterations; i++) { arr.push(crypto.randomUUID()); }
random
const arr = []; for (let i = 0; i < iterations; i++) { arr.push(crypto.getRandomValues(new Uint8Array(16))); }