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Run results for:
Spread operator vs Object.assign vs Object.create
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=530600" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/127.0 Mobile/15E148 Safari/605.1.15
Browser:
Mobile Safari 17
Operating system:
iOS 17.5.1
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
Test Spread operator
27176738.0 Ops/sec
Test Object.create
3432791.5 Ops/sec
Test Object.assign
5714519.5 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(Object.getPrototypeOf(firstObject), Object.getOwnPropertyDescriptors(firstObject));
Test Object.assign
const firstObject = { sampleData: 'Hello world', sampleMethod: () => { return true; } }; const secondObject = Object.assign({}, firstObject); Object.setPrototypeOf(secondObject, Object.getPrototypeOf(firstObject));