Run results for: instanceof vs typeof vs fast typeof object

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Edg/131.0.0.0
Chrome 131
Windows
Desktop
one year ago
Test name Executions per second
instanceof 4615432.5 Ops/sec
typeof 7939059.5 Ops/sec
typeof object charAt 7688023.0 Ops/sec
typeof object slice 91977704.0 Ops/sec
Script Preparation code:
Tests:

  • instanceof

  • typeof

  • typeof object charAt

  • typeof object slice