Run results for: Boolean vs !! fork - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
!!emptyStr	36131640.0 Ops/sec
!!str	33557052.0 Ops/sec
!!null	35916212.0 Ops/sec
!!undefined	36453216.0 Ops/sec
!!0	35948856.0 Ops/sec
!!num	36228792.0 Ops/sec
Boolean(emptyStr)	12654229.0 Ops/sec
Boolean(str)	12626233.0 Ops/sec
Boolean(null)	12595537.0 Ops/sec
Boolean(undefined)	12490717.0 Ops/sec
Boolean(0)	12533720.0 Ops/sec
Boolean(num)	12003357.0 Ops/sec

Script Preparation code:

var emptyStr = '';
var str = 'str';
var nl = null;
var undfnd = undefined;
var zero = 0;
var num = 100;

Tests:

!!emptyStr
!!emptyStr
!!str
!!str
!!null
!!nl
!!undefined
!!undfnd
!!0
!!zero
!!num
!!num
Boolean(emptyStr)
Boolean(emptyStr)
Boolean(str)
Boolean(str)
Boolean(null)
Boolean(nl)
Boolean(undefined)
Boolean(undfnd)
Boolean(0)
Boolean(zero)
Boolean(num)
Boolean(num)

;