Run results for: JS instanceof vs in

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Browser: Chrome 109

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
instanceof	4124736.0 Ops/sec
in	11794514.0 Ops/sec

Script Preparation code:

var obj = {a:2};

Tests: