Run results for: floor() vs trunc() vs bitwise hacks (~~, >> 0, etc) vs round()

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36 Edg/136.0.0.0
Chrome 136
Windows
Desktop
11 months ago
Test name Executions per second
floor 9177581.0 Ops/sec
~~ 7997858.5 Ops/sec
>> 0 7843933.5 Ops/sec
| 0 9102104.0 Ops/sec
<< 0 9335864.0 Ops/sec
Math.trunc() 9327465.0 Ops/sec
x - (x % 1) 9277747.0 Ops/sec
parseInt() 9110998.0 Ops/sec
round() 9276977.0 Ops/sec
Script Preparation code:
Tests:

  • floor

  • ~~

  • >> 0

  • | 0

  • << 0

  • Math.trunc()

  • x - (x % 1)

  • parseInt()

  • round()