Run results for: toFixed vs Math.round() - result as a number

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.1

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

(Math.round(*10000)/10000).toString()

10.5M/s

toFixed(4)

7.6M/s

View exact numbers

Test name	Executions per second
✓ (Math.round(*10000)/10000).toString()	10,511,352 Ops/sec
toFixed(4)	7,613,493 Ops/sec

Script Preparation code:

var someFloat = 0.123456789;

Tests: