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/140.0.0.0 Safari/537.36

Browser: Chrome 140

Operating system: Windows

Device Platform: Desktop

Date tested: 2 months ago

typeof

39.2M/s

instanceof

29.5M/s

View exact numbers

Test name	Executions per second
✓ typeof	39,154,100 Ops/sec
instanceof	29,518,258 Ops/sec

Script Preparation code:

var f = () => {};

Tests: