Benchmark: Object.create vs {}

Tests:

Object.create
const x = Object.create(null)
{}
const x = {}

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

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

View result in a separate tab

Test name	Executions per second
Object.create	16637968.0 Ops/sec
{}	1043285056.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

**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!

Related benchmarks:

Object.create vs {} (version: 0)

Comparing performance of: Object.create vs {}

Created: 5 years ago by: Guest

Jump to the latest result

Object.create

{}

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):