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Run results for:
bechn Spread operator VS Object.assign VS Object.create vs new Object for simple Objects
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<iframe src="https://measurethat.net/Embed?id=606796" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0
Browser:
Firefox 138
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test Object.assign
16.5M/s
Test Spread operator
13.6M/s
Test Object.create
1.4M/s
Test New Object
695K/s
View exact numbers
Test name
Executions per second
✓
Test Object.assign
16,466,277 Ops/sec
Test Spread operator
13,550,245 Ops/sec
Test Object.create
1,353,093 Ops/sec
Test New Object
694,617 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);
Test New Object
class firstObject { constructor() { this.sampleData = 'Hello world', this.sampleMethod = () => { return true; } } }; const secondObject = new firstObject();