Run results for: instanceof vs typeof

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Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 18_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0 Mobile/15E148 Safari/604.1
Mobile Safari 18
iOS 18.0
Mobile
one year ago
typeof
19.8M/s
typeof no function
9.4M/s
typeof and test attribute
9.2M/s
instanceof
7.7M/s
View exact numbers
Test name Executions per second
✓ typeof 19,813,384 Ops/sec
typeof no function 9,384,076 Ops/sec
typeof and test attribute 9,179,667 Ops/sec
instanceof 7,690,040 Ops/sec
Script Preparation code:
Tests: