Run results for: instanceof vs hasOwnProperty

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0

Browser: Firefox 111

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
instanceOf	151874600.0 Ops/sec
hasOwnProperty	1348340000.0 Ops/sec

Script Preparation code:

var obj = {a: 1}

Tests: