Run results for: round vs trunc vs floor vs parseFloat

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_1_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1.2 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.1.2

Device Platform: Mobile

Date tested: 2 years ago

trunc

9.2M/s

round

8.8M/s

floor

8.8M/s

parseFloat to int

4.0M/s

View exact numbers

Test name	Executions per second
✓ trunc	9,248,901 Ops/sec
round	8,848,121 Ops/sec
floor	8,771,196 Ops/sec
parseFloat to int	3,982,452 Ops/sec

Tests:

trunc
Math.trunc(13.37) Math.trunc(13.67)
round
Math.round(13.37) Math.round(13.67)
floor
Math.floor(13.37) Math.floor(13.67)
parseFloat to int
parseFloat(12.17.toFixed()) parseFloat(12.97.toFixed())