Run results for: instanceof vs hasOwnProperty

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.3 Safari/605.1.15

Browser: Safari 13

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
instanceOf	5315182.0 Ops/sec
hasOwnProperty	13576300.0 Ops/sec

Script Preparation code:

var obj = {a: 1}

Tests: