Run results for: undefined vs. hasOwnProperty

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.97 Safari/537.36

Browser: Chrome 96

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
undefined	10608712.0 Ops/sec
hasOwnProperty	9964657.0 Ops/sec

Script Preparation code:

var obj = { a: 1, b: 2, c: 3, d: 4, e: 5 };

Tests: