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Run results for: instanceof vs typeof vs fast typeof object

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Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 15_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.1 Mobile/15E148 Safari/604.1
Mobile Safari 15
iOS 15.1
Mobile
3 years ago
Test name Executions per second
instanceof 3231113.2 Ops/sec
typeof 8228087.5 Ops/sec
typeof object charAt 6771298.0 Ops/sec
typeof object slice 136188752.0 Ops/sec
Script Preparation code:
Tests:

  • instanceof

  • typeof

  • typeof object charAt

  • typeof object slice