Run results for: round vs trunc vs floor vs parseFloat - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123.0

Browser: Firefox 123

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

trunc

1601.3M/s

floor

1569.7M/s

round

1522.0M/s

parseFloat to int

7.5M/s

View exact numbers

Test name	Executions per second
✓ trunc	1,601,279,232 Ops/sec
floor	1,569,655,424 Ops/sec
round	1,522,038,400 Ops/sec
parseFloat to int	7,488,818 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())