Run results for: instanceof vs hasOwnProperty

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 Safari/537.36

Browser: Chrome 69

Operating system: Mac OS X 10.14.1

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
instanceOf	3839629.0 Ops/sec
hasOwnProperty	10594290.0 Ops/sec

Script Preparation code:

var obj = {a: 1}

Tests: