Run results for: Spread vs Object.assign vs Object.keys with forEach (without new object)1

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/110.0

Browser: Firefox 110

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Tests:

Using the spread operator
let firstObject = { sampleData: 'Hello world' }; const secondObject = { moreData: 'foo bar' }; firstObject = { ...firstObject, ...secondObject };
Using Object.assign
let firstObject = { sampleData: 'Hello world' }; const secondObject = { moreData: 'foo bar' }; Object.assign(firstObject, secondObject);
Overriding the first object
let firstObject = { sampleData: 'Hello world' } const secondObject = { moreData: 'foo bar' } Object.keys(secondObject).forEach(key => {firstObject[key] = secondObject[key] })