Run results for: Number.isInteger() vs typeof

Is it faster to detect if a variable is an integer or is it faster to use typeof to verify the type?

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Chrome 131
Mac OS X 10.15.7
Desktop
one year ago
typeof negative
173.7M/s
typeof positive
171.3M/s
Number.isInteger() positive
142.4M/s
Number.isInteger() negative
142.0M/s
View exact numbers
Test name Executions per second
✓ typeof negative 173,747,008 Ops/sec
typeof positive 171,279,424 Ops/sec
Number.isInteger() positive 142,432,928 Ops/sec
Number.isInteger() negative 141,988,400 Ops/sec
Tests: