Run results for: instanceof vs hasOwnProperty

Run details:

User agent: Mozilla/5.0 (Linux; Android 12; Pixel 5a) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Mobile Safari/537.36 EdgA/103.0.1264.62

Browser: Chrome Mobile 103

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
instanceOf	2266451.0 Ops/sec
hasOwnProperty	6465051.0 Ops/sec

Script Preparation code:

var obj = {a: 1}

Tests:

instanceOf
obj instanceof Object
hasOwnProperty
obj.hasOwnProperty('a')

Run results for: instanceof vs hasOwnProperty

instanceOf

hasOwnProperty