Run results for: Math.random vs a+=1

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Whale/3.24.223.18 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Math.random

7.5M/s

a+=1

6.1M/s

View exact numbers

Test name	Executions per second
✓ Math.random	7,487,046 Ops/sec
a+=1	6,124,772 Ops/sec

Script Preparation code:

var a = 0;

Tests: