Benchmark: JavaScript spread operator vs Object.assign performance temp

Tests:

Using the spread operator
const firstObject = { sampleData: 'Hello world' } const secondObject = { moreData: 'foo bar' } const finalObject = { ...firstObject, ...secondObject };
Using Object.assign
const firstObject = { sampleData: 'Hello world' } const secondObject = { moreData: 'foo bar' } const finalObject = {}; Object.assign(finalObject, firstObject, secondObject);
ajostg[pf
const firstObject = { sampleData: 'Hello world' } const secondObject = { moreData: 'foo bar' } const finalObject = {}; Object.assign(finalObject, { ...firstObject, ...secondObject });

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36

Browser/OS: Chrome 81 on Windows 7

JavaScript spread operator vs Object.assign performance temp (version: 0)