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 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Chrome 120
Linux
Desktop
2 years ago
typeof positive
828.2M/s
typeof negative
816.9M/s
Number.isInteger() negative
10.9M/s
Number.isInteger() positive
10.7M/s
View exact numbers
Test name Executions per second
✓ typeof positive 828,155,776 Ops/sec
typeof negative 816,862,016 Ops/sec
Number.isInteger() negative 10,856,196 Ops/sec
Number.isInteger() positive 10,657,357 Ops/sec
Tests: