Run results for: typeof x === 'number' vs isNaN(x)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser: Chrome 128

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

typeof

157.2M/s

isNaN

11.2M/s

View exact numbers

Test name	Executions per second
✓ typeof	157,217,616 Ops/sec
isNaN	11,245,198 Ops/sec

Tests: