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:124.0) Gecko/20100101 Firefox/124.0

Browser: Firefox 124

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

floor

1239.7M/s

round

1232.6M/s

trunc

1230.3M/s

parseFloat to int

9.3M/s

View exact numbers

Test name	Executions per second
✓ floor	1,239,682,688 Ops/sec
round	1,232,593,408 Ops/sec
trunc	1,230,296,704 Ops/sec
parseFloat to int	9,277,228 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())