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Object.create vs {}
(version: 0)
Comparing performance of:
Object.create vs {}
Created:
6 years ago
by:
Guest
Go to the latest result
Tests:
Object.create
const x = Object.create(null)
{}
const x = {}
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Object.create
{}
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36
Browser/OS:
Chrome 119 on Mac OS X 10.15.7
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<iframe src="https://measurethat.net/Embed?id=486859" width="100%" height="500px"></iframe>
{}
1043.3M/s
Object.create
16.6M/s
View exact numbers
Test name
Executions per second
✓
{}
1,043,285,056 Ops/sec
Object.create
16,637,968 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Benchmark Overview** The provided benchmark, "Object.create vs {}", compares the performance of two approaches to create an object in JavaScript: using `Object.create(null)` and creating an empty object literal `{}`. **Options Compared** There are only two options being compared: 1. **`Object.create(null)`**: This method creates a new object with no prototype, allowing you to set custom properties directly on the object without inheriting from a parent object. 2. **Empty Object Literal `{}`**: This approach creates an empty object literal using curly brackets `{}`, which is a common way to create an empty object in JavaScript. **Pros and Cons of Each Approach** 1. **`Object.create(null)`**: * Pros: + Allows for more fine-grained control over the object's properties. + Can be faster since it avoids the overhead of creating a prototype chain. * Cons: + May require additional code to set the `prototype` property, which can be error-prone if not done correctly. 2. **Empty Object Literal `{}`**: * Pros: + Easy to use and intuitive. * Cons: + Creates a new object with an empty prototype chain, which may lead to unexpected inheritance behavior. **Library Usage** There is no explicit library usage in this benchmark. The `Object.create(null)` method is a built-in JavaScript feature. **Special JS Feature or Syntax** None of the test cases use any special JavaScript features or syntax that requires explanation. **Other Alternatives** If you wanted to test alternative approaches, you could consider: 1. Using `Object.assign()` to create an empty object. 2. Using a library like Lodash's `create` function to create an empty object. 3. Using a different data structure, such as a WeakMap or a Map, to store the object. Keep in mind that these alternatives might not be directly comparable to the original benchmark, and their performance characteristics may vary depending on the specific use case. I hope this explanation helps you understand the benchmark and its test cases!
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