Run results for: JavaScript assignment vs Object.assign performance vs Spread performance

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36

Browser: Chrome 111

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Tests:

Equal
const firstObject = { sampleData: ()=>{return 1+1;} } const secondObject = { moreData: 'foo bar' } let finalObject = {}; finalObject['firstObject'] = firstObject.sampleData; finalObject['secondObject'] = secondObject.moreData;
Object.assign
const firstObject = { sampleData: ()=>{return 1+1;} } const secondObject = { moreData: 'foo bar' } const finalObject = Object.assign(firstObject, secondObject);
Spread
const firstObject = { sampleData: ()=>{return 1+1;} } const secondObject = { moreData: 'foo bar' } const finalObject = {...firstObject, ...secondObject};