Benchmark: Instanciation vs object

Script Preparation code:

class User{
	constructor(){
    }
}

Tests:

Instanciation
const u = new User(); u.id = 'user';
Object
const u = {}; u.id = 'user';

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Instanciation
Object

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's break down what's being tested in this benchmark.

**Benchmark Definition JSON**

The benchmark definition provides information about the test itself, including its name and description (which is currently empty). The script preparation code defines a JavaScript class called `User` with a constructor that does nothing. There are no HTML preparation codes provided.

**Individual Test Cases**

There are two test cases being compared:

1. **Instanciation**: This test case creates an instance of the `User` class using the `new` keyword, like this: `const u = new User();`. The goal is to measure how long it takes to create a new object instance.
2. **Object**: This test case creates an empty object and assigns a property to it, like this: `const u = {}; u.id = 'user';`. The goal is to measure how long it takes to create an object with a custom configuration.

**Library**

In the script preparation code, there is a reference to a `User` class. This suggests that the test is using a library or framework that provides this class. However, without more context, it's difficult to determine exactly which library is being used.

Assuming that this is a standard JavaScript implementation of the `User` class, we can proceed with the analysis.

**Options Compared**

The two options being compared are:

1. Creating an instance of a class using the `new` keyword.
2. Creating an object with a custom configuration directly in memory (i.e., without going through a class).

**Pros and Cons**

Here's a brief summary of the pros and cons of each approach:

**Instanciation**

Pros:

* Can be more efficient, as it avoids creating an unnecessary object.
* May be faster for complex classes or objects with many dependencies.

Cons:

* Requires creating an instance of the class, which can involve additional overhead (e.g., setting up prototype chains).
* May not be as flexible, as it's tied to a specific class definition.

**Object**

Pros:

* Can be more flexible, as it allows for direct manipulation of object properties.
* Does not require creating an instance of a class, which can simplify the code.

Cons:

* Can be slower, as it involves creating an object with multiple properties and setting them individually.
* May lead to memory issues if not managed carefully (e.g., if objects are not properly garbage collected).

**Special JS Feature or Syntax**

In this benchmark, there is no special JavaScript feature or syntax being used. The test cases are straightforward and rely on standard JavaScript features.

**Other Alternatives**

There may be other ways to create an object with a custom configuration, such as using a library like Lodash or Ramda for functional programming. However, the `Object` approach in this benchmark seems to be a simple and direct way to achieve the goal.

Overall, this benchmark provides a useful comparison between two approaches to creating objects in JavaScript, highlighting the trade-offs between instance creation and object configuration.

Related benchmarks:

Instanciation vs object (version: 1)

Comparing performance of: Instanciation vs Object

Created: 8 years ago by: Registered User

Jump to the latest result

Instanciation

Object

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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