Run results for: JavaScript spread operator vs Object.assign performance 26

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36

Browser: Chrome 88

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Using the spread operator 23	2075098.2 Ops/sec
Using Object.assign 22	4595292.0 Ops/sec

Tests:

Using the spread operator 23
const firstObject = { sampleData: 'Hello world' } const secondObject = { moreData: 'foo bar' } const finalObject = { ...firstObject, ...secondObject }; let a = 1; if (finalObject !== firstObject) a +=1;
Using Object.assign 22
const firstObject = { sampleData: 'Hello world' } const secondObject = { moreData: 'foo bar' } const finalObject = Object.assign({}, firstObject, secondObject); let a = 1; if (finalObject !== firstObject) a +=1;