Run results for: JavaScript spread operator vs Object.assign performance redux like

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Using the spread operator	34601912.0 Ops/sec
Using Object.assign	19307806.0 Ops/sec

Tests:

Using the spread operator
const object = { a: 'Hello world', b: [1,2,3], c: 42 }; const finalObject = { ...object, c: 69 };
Using Object.assign
const object = { a: 'Hello world', b: [1,2,3], c: 42 }; const finalObject = Object.assign({}, {c: 69});