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/144.0.0.0 Safari/537.36

Browser: Chrome 144

Operating system: Windows

Device Platform: Desktop

Date tested: 6 months ago

typeof

258.6M/s

instanceof

189.4M/s

View exact numbers

Test name	Executions per second
✓ typeof	258,591,728 Ops/sec
instanceof	189,403,024 Ops/sec

Script Preparation code:

var f = () => {};

Tests: