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

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36
Chrome 113
Windows
Desktop
one year ago
Test name Executions per second
Boolean 1274851.2 Ops/sec
Double negation trick 3638631.5 Ops/sec
Script Preparation code:
AخA
 
var bFalse = false;
var sEmpty = '';
var sFilled = 'Foo';
var nZero = 0;
var nOne = 1;
Tests:

  • Boolean

     
    const a = Boolean(bFalse)
    const b = Boolean(sEmpty)
    const c = Boolean(sFilled)
    const d = Boolean(nZero)
    const e = Boolean(nOne)

  • Double negation trick

     
    const a = !!bFalse
    const b = !!sEmpty
    const c = !!sFilled
    const d = !!nZero
    const e = !!nOne