Run results for: !!number vs (number !== 0) - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/110.0

Browser: Firefox 110

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
!!	1004.3 Ops/sec
!== 0	962.1 Ops/sec
direct	950.3 Ops/sec

Script Preparation code:

var N = 1000000

Tests:

!!
var sum = 0 for(let i = 0; i < N; i++) { if (!!(i & 0xFF)) sum++ }
!== 0
var sum = 0 for(let i = 0; i < N; i++) { if((i & 0xFF) !== 0) sum++ }
direct
var sum = 0 for(let i = 0; i < N; i++) { if(i & 0xFF) sum++ }

;