Run results for: JavaScript reduce vs Object.assign performance

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36

Browser: Chrome 94

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Using reduce	4382296.5 Ops/sec
Using Object.assign	3711520.0 Ops/sec

Tests:

Using reduce
const firstObject = { '...': true } const arrayOfObjects = [{ moreData: 'foo bar' }, { evenMore: 'data' }] const finalObject = arrayOfObjects.reduce((result, object) => ({ ...result, ...object }), { '...': true })
Using Object.assign
const firstObject = { '...': true } const arrayOfObjects = [{ moreData: 'foo bar' }, { evenMore: 'data' }] const finalObject = Object.assign(firstObject, ...arrayOfObjects);