MeasureThat.net

Run results for: Boolean constructor vs double negotiation trick in javascript

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:125.0) Gecko/20100101 Firefox/125.0
Firefox 125
Mac OS X 10.15
Desktop
one year ago
Test name Executions per second
Boolean 1136643968.0 Ops/sec
Double negation trick 1183579008.0 Ops/sec
Script Preparation code:
AخA
 
var bFalse = false;
var sEmpty = '';
var sFilled = 'Foo';
var nZero = 0;
var nOne = 1;
Tests:

  • Boolean

     
    Boolean(bFalse)
    Boolean(sEmpty)
    Boolean(sFilled)
    Boolean(nZero)
    Boolean(nOne)

  • Double negation trick

     
    !!bFalse
    !!sEmpty
    !!sFilled
    !!nZero
    !!nOne