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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:139.0) Gecko/20100101 Firefox/139.0

Browser: Firefox 139

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

x - (x % 1)

572.9M/s

floor

496.0M/s

| 0

478.0M/s

>> 0

476.5M/s

476.3M/s

& 0xFFFFFFFFFFFF

476.2M/s

^ 0x000000000000

475.5M/s

<< 0

475.3M/s

Math.trunc()

466.2M/s

parseInt()

455.9M/s

View exact numbers

Script Preparation code:

var x = Math.random() * 100000000;
var y;

Tests: