Run results for: instanceof vs hasOwnProperty

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:120.0) Gecko/20100101 Firefox/120.0

Browser: Firefox 120

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

hasOwnProperty

810.7M/s

instanceOf

126.8M/s

View exact numbers

Test name	Executions per second
✓ hasOwnProperty	810,699,200 Ops/sec
instanceOf	126,827,472 Ops/sec

Script Preparation code:

var obj = {a: 1}

Tests: