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Run results for:
Spread vs Object.assign vs Object.create
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<iframe src="https://measurethat.net/Embed?id=499460" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0
Browser:
Firefox 121
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Test Object.assign
22.9M/s
Test Spread operator
15.8M/s
Test Object.create
1.7M/s
View exact numbers
Test name
Executions per second
✓
Test Object.assign
22,896,494 Ops/sec
Test Spread operator
15,832,545 Ops/sec
Test Object.create
1,730,335 Ops/sec
Script Preparation code:
for (i = 0; i < 10; i++) {}
Tests:
Test Spread operator
const firstObject = { sampleData: 'Hello world', sampleMethod: () => { return true; } }; const secondObject = {...firstObject};
Test Object.create
const firstObject = { sampleData: 'Hello world', sampleMethod: () => { return true; } }; const secondObject = Object.create(firstObject);
Test Object.assign
const firstObject = { sampleData: 'Hello world', sampleMethod: () => { return true; } }; const secondObject = Object.assign({}, firstObject);