Run results for: instanceof vs hasOwnProperty

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:122.0) Gecko/20100101 Firefox/122.0

Browser: Firefox 122

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

hasOwnProperty

925.6M/s

instanceOf

140.1M/s

View exact numbers

Test name	Executions per second
✓ hasOwnProperty	925,570,496 Ops/sec
instanceOf	140,082,592 Ops/sec

Script Preparation code:

var obj = {a: 1}

Tests: