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Run results for: round vs trunc vs floor vs parseFloat

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15
Safari 13
Mac OS X 10.14.6
Desktop
4 years ago
Test name Executions per second
trunc 3422007.0 Ops/sec
round 3540199.5 Ops/sec
floor 3455486.5 Ops/sec
parseFloat to int 1765643.5 Ops/sec
Tests:

  • trunc

    AخA
     
    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())