Run results for: Object assign vs Property change

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.67 Safari/537.36

Browser: Chrome 101

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
assignation	769894784.0 Ops/sec
object.assign	5247464.5 Ops/sec

Tests:

assignation

const emptyObject = { a : '-', b :'-' }
const mainObject = { a : 'aylmao', b :'brrrr' }

mainObject.a = emptyObject.a;
mainObject.b = emptyObject.b;

​x
 
const emptyObject = { a : '-', b :'-' }const mainObject = { a : 'aylmao', b :'brrrr' }​mainObject.a = emptyObject.a;mainObject.b = emptyObject.b;

object.assign

const emptyObject = { a : '-', b :'-' };
const mainObject = { a : 'aylmao', b :'brrrr' };

Object.assign(mainObject, emptyObject);

 
const emptyObject = { a : '-', b :'-' };const mainObject = { a : 'aylmao', b :'brrrr' };​Object.assign(mainObject, emptyObject);