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

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0
Firefox 138
Windows
Desktop
one year ago
Math.trunc()
1371.1M/s
parseInt()
1289.2M/s
x - (x % 1)
1288.3M/s
round()
1280.7M/s
floor
1250.6M/s
~~
1218.2M/s
>> 0
1037.2M/s
<< 0
1035.6M/s
| 0
1027.8M/s
View exact numbers
Test name Executions per second
✓ Math.trunc() 1,371,100,416 Ops/sec
parseInt() 1,289,248,384 Ops/sec
x - (x % 1) 1,288,333,568 Ops/sec
round() 1,280,737,664 Ops/sec
floor 1,250,552,704 Ops/sec
~~ 1,218,158,720 Ops/sec
>> 0 1,037,156,224 Ops/sec
<< 0 1,035,588,160 Ops/sec
| 0 1,027,821,568 Ops/sec
Script Preparation code:
Tests: