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Run results for:
Boolean constructor vs double negotiation trick in javascript
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0
Browser:
Firefox 133
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Boolean
2137115008.0 Ops/sec
Double negation trick
2127780608.0 Ops/sec
Script Preparation code:
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