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?

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36 Edg/135.0.0.0
Chrome 135
Mac OS X 10.15.7
Desktop
one year ago
Number.isInteger() positive
139.2M/s
Number.isInteger() negative
136.9M/s
typeof positive
136.5M/s
typeof negative
128.6M/s
View exact numbers
Test name Executions per second
✓ Number.isInteger() positive 139,211,312 Ops/sec
Number.isInteger() negative 136,896,720 Ops/sec
typeof positive 136,486,768 Ops/sec
typeof negative 128,612,952 Ops/sec
Tests: