Run results for: typeof vs instanceof Function

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:147.0) Gecko/20100101 Firefox/147.0

Browser: Firefox 147

Operating system: Windows

Device Platform: Desktop

Date tested: 5 months ago

typeof

2952.7M/s

instanceof

285.6M/s

View exact numbers

Test name	Executions per second
✓ typeof	2,952,713,728 Ops/sec
instanceof	285,609,536 Ops/sec

Script Preparation code:

var f = () => {};

Tests: