Run results for: Function: typeof vs instanceof

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36 Edg/133.0.0.0

Browser: Chrome 133

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

typeof

37.5M/s

instanceof

36.5M/s

View exact numbers

Test name	Executions per second
✓ typeof	37,488,652 Ops/sec
instanceof	36,468,924 Ops/sec

Script Preparation code:

const f = () => {};
let i = 0;

Tests: