Run results for: undefined vs. typeof vs. in vs. hasOwnProperty 222

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:97.0) Gecko/20100101 Firefox/97.0

Browser: Firefox 97

Operating system: Mac OS X 10.14

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
undefined	891027264.0 Ops/sec
typeof	880067904.0 Ops/sec

Script Preparation code:

var obj;

Tests: