Run results for: JavaScript spread operator vs Object.assign performance fixed 2

Run details:

User agent: Mozilla/5.0 (Linux; Android 12; M2103K19PG Build/SP1A.210812.016) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.88 Mobile Safari/537.36

Browser: Chrome Mobile 99

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Using the spread operator	492094.2 Ops/sec
Using Object.assign	1038534.0 Ops/sec

Script Preparation code:

var firstObject = { sampleData: 'Hello world' }
var secondObject = { moreData: 'foo bar' }

Tests:

Using the spread operator
const finalObject = { ...firstObject, ...secondObject };
Using Object.assign
const finalObject = Object.assign({}, firstObject, secondObject);

Run results for: JavaScript spread operator vs Object.assign performance fixed 2

Using the spread operator

Using Object.assign