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Run results for:
bechn Spread operator VS Object.assign VS Object.create vs new Object
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=529255" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0
Browser:
Firefox 128
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
Test Object.assign
2.9M/s
Test Spread operator
2.5M/s
Test Object.create
660K/s
Test New Object
655K/s
View exact numbers
Test name
Executions per second
✓
Test Object.assign
2,911,488 Ops/sec
Test Spread operator
2,467,674 Ops/sec
Test Object.create
659,707 Ops/sec
Test New Object
655,065 Ops/sec
Script Preparation code:
for (i = 0; i < 10; i++) { }
Tests:
Test Spread operator
class firstObject { constructor() { this.sampleData = 'Hello world', this.sampleMethod = () => { return true; } } }; const secondObject = {...firstObject}; Object.setPrototypeOf(secondObject, Object.getPrototypeOf(firstObject));
Test Object.create
class firstObject { constructor() { this.sampleData = 'Hello world', this.sampleMethod = () => { return true; } } }; const secondObject = Object.create(Object.getPrototypeOf(firstObject), Object.getOwnPropertyDescriptors(firstObject));
Test Object.assign
class firstObject { constructor() { this.sampleData = 'Hello world', this.sampleMethod = () => { return true; } } }; const secondObject = Object.assign({}, firstObject); Object.setPrototypeOf(secondObject, Object.getPrototypeOf(firstObject));
Test New Object
class firstObject { constructor() { this.sampleData = 'Hello world', this.sampleMethod = () => { return true; } } }; const secondObject = new firstObject();