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/134.0.0.0 Safari/537.36
Chrome 134
Mac OS X 10.15.7
Desktop
one year ago
Number.isInteger() negative
239.5M/s
Number.isInteger() positive
234.6M/s
typeof positive
224.9M/s
typeof negative
191.0M/s
View exact numbers
Test name Executions per second
✓ Number.isInteger() negative 239,513,664 Ops/sec
Number.isInteger() positive 234,612,720 Ops/sec
typeof positive 224,880,448 Ops/sec
typeof negative 190,997,136 Ops/sec
Tests: