Benchmark: javascript new vs Object.create 3

Tests:

Object.create
let bar = Object.create(Object.prototype);
new
let foo = new Object();
simple
let bax = {};

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.create
new
simple

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0

Browser/OS: Firefox 134 on Windows

View result in a separate tab

Test name	Executions per second
Object.create	1286338304.0 Ops/sec
new	1525710080.0 Ops/sec
simple	1458555136.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'd be happy to explain the benchmark being measured.

**What is being tested?**

The benchmark measures the performance of three different ways to create objects in JavaScript: `new`, `Object.create`, and a "simple" approach using an empty object literal `{}`.

**Options compared**

The benchmark compares the performance of these three approaches because they have different characteristics that can impact execution speed:

1. **`new Object()`**: This creates a new, empty object with its own prototype chain. It's a simple and straightforward way to create an object.
2. **`Object.create(Object.prototype)`**: This method creates a new object with the prototype of `Object.prototype`. This approach allows for more control over the prototype chain, but can be slower than using the `new` operator.
3. **Simple approach: `{}`**: This creates a new object by simply creating an empty object literal. This is often considered the fastest way to create an object in JavaScript.

**Pros and cons of each approach**

1. **`new Object()`**:
	* Pros: Simple, efficient, and widely supported.
	* Cons: Can lead to unexpected prototype chain behavior if not used carefully.
2. **`Object.create(Object.prototype)`**:
	* Pros: Provides more control over the prototype chain, which can be useful in certain situations.
	* Cons: May be slower than using `new`, especially for simple objects.
3. **Simple approach: `{}`**:
	* Pros: Fastest way to create an object, with minimal overhead.
	* Cons: May not provide any additional benefits or control over the prototype chain.

**Library usage**

None of the test cases use any external libraries.

**Special JavaScript features or syntax**

The benchmark does not use any special JavaScript features or syntax that might affect its results. It only uses standard ECMAScript syntax.

**Other alternatives**

If you're interested in optimizing object creation, you may also consider using techniques like:

* Creating objects on the stack instead of the heap (not applicable here)
* Using `Object.assign()` to create new objects from existing ones
* Using `Object.create()` with a custom prototype object

However, for simple cases, the `new Object()` and simple `{}` approaches are usually sufficient.

Related benchmarks:

javascript new vs Object.create 3 (version: 0)

Comparing performance of: Object.create vs new vs simple

Created: 2 years ago by: Guest

Jump to the latest result

Object.create

new

simple

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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