Run results for: instanceof vs isPrototypeOf

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

instanceof

63.9M/s

isPrototypeOf

62.7M/s

View exact numbers

Test name	Executions per second
✓ instanceof	63,928,808 Ops/sec
isPrototypeOf	62,667,472 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

class a {}

Tests: