Run results for: typeof vs instanceof Function

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser: Chrome 126

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

typeof

16.6M/s

instanceof

6.5M/s

View exact numbers

Test name	Executions per second
✓ typeof	16,574,632 Ops/sec
instanceof	6,455,585 Ops/sec

Script Preparation code:

var f = () => {};

Tests: