Run results for: Object.assign vs mutation

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36 Edg/113.0.1774.57

Browser: Chrome 113

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Object.assign without creating new obj	8736358.0 Ops/sec
mutation	28939300.0 Ops/sec

Script Preparation code:

var translations = {foo: 'bar'};

Tests:

Object.assign without creating new obj
Object.assign(translations, {'loading': 'Loading'});
mutation
translations.loading = 'Loading';