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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:136.0) Gecko/20100101 Firefox/136.0

Browser: Firefox 136

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

isNaN

635.9M/s

typeof

634.1M/s

View exact numbers

Test name	Executions per second
✓ isNaN	635,918,784 Ops/sec
typeof	634,131,072 Ops/sec

Tests: