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Run results for:
JavaScript spread operator vs Object.assign performance - Kien Nguyen
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<iframe src="https://measurethat.net/Embed?id=613114" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36
Browser:
Chrome 137
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Using the spread operator
23.9M/s
Using Object.assign
14.3M/s
View exact numbers
Test name
Executions per second
✓
Using the spread operator
23,881,718 Ops/sec
Using Object.assign
14,335,449 Ops/sec
Tests:
Using Object.assign
const finalObject = Object.assign({}, document.body);
Using the spread operator
const finalObject = {...document.body};