Run results for: key in object vs object.key

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36

Browser: Chrome 99

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
key in object	6497894.0 Ops/sec
object.key	13035632.0 Ops/sec

Script Preparation code:

var key = 'hello';
var value = 'world';
var object = {[key]: value};

Tests: