Benchmark: Angular clone vs Lodash cloneDeep vs JSON Clone v1.1

HTML Preparation code:

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.0/angular.min.js"></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var MyObject = {
  description: 'Creates a deep copy of source, which should be an object or an array.',
  myNumber: 123456789,
  myBoolean: true,
  jayson: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  createdAt: new Date(),
  arr: [
    1,
    2,
    3,
    4,
    5,
    6,
    7
  ]
};

var myCopy = null;

Tests:

Lodash cloneDeep
myCopy = _.cloneDeep(MyObject);
Json clone
myCopy = JSON.parse(JSON.stringify(MyObject));
Angular copy
myCopy = angular.copy(MyObject);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Json clone
Angular copy

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 dive into the explanation of the provided benchmark.

**Overview**
-----------------

The benchmark is designed to compare the performance of three different libraries: Lodash, AngularJS, and JSON Clone (v1.1). Each library is tested for its cloning functionality on a specific JavaScript object (`MyObject`).

**Library Overview**
--------------------

*   **Lodash**: A popular utility library for JavaScript that provides a wide range of functions for tasks such as array manipulation, string processing, and more. `_.cloneDeep()` is used to create a deep copy of an object.
*   **AngularJS**: A JavaScript framework for building single-page applications. It has its own clone functionality called `angular.copy()`.
*   **JSON Clone (v1.1)**: A lightweight library specifically designed to perform JSON-related tasks, including cloning.

**Benchmark Test Cases**
-------------------------

The benchmark consists of three test cases:

### 1. Lodash CloneDeep

```javascript
myCopy = _.cloneDeep(MyObject);
```

*   **Purpose**: To create a deep copy of `MyObject` using Lodash's `_.cloneDeep()` function.
*   **Pros**:
    *   Efficient and widely-used utility library.
    *   Supports deep cloning, which is essential for complex objects with nested properties.
*   **Cons**:
    *   May introduce additional dependencies due to its widespread use.

### 2. Angular Copy

```javascript
myCopy = angular.copy(MyObject);
```

*   **Purpose**: To create a copy of `MyObject` using AngularJS's `angular.copy()` function.
*   **Pros**:
    *   Specifically designed for copying objects in AngularJS applications.
    *   May be more optimized for performance compared to Lodash.
*   **Cons**:
    *   Limited to AngularJS applications and may not work with other frameworks.
    *   May require additional setup due to its framework-specific nature.

### 3. JSON Clone

```javascript
myCopy = JSON.parse(JSON.stringify(MyObject));
```

*   **Purpose**: To create a deep copy of `MyObject` using the `JSON.parse()` and `JSON.stringify()` methods.
*   **Pros**:
    *   Lightweight and easy to implement, making it suitable for small projects or prototyping.
    *   Works with most JavaScript environments without additional dependencies.
*   **Cons**:
    *   Inefficient due to the overhead of stringification and parsing.
    *   May not work correctly with all types of objects (e.g., Date, RegEx).

**Alternative Approaches**
---------------------------

While these three libraries are popular choices for cloning functionality, there are other alternatives:

*   **Built-in `Object.assign()`**: A more modern approach to copying objects using the `Object.assign()` method.
*   **`lodash-es`**: An alternative implementation of Lodash that provides similar functionality without the polyfills required by `lodash`.
*   **Other libraries**: Such as Immer, Ramda, or Escodegen, which offer varying degrees of cloning functionality.

In conclusion, the benchmark highlights the performance differences between these three libraries when it comes to creating deep copies of JavaScript objects. The choice of library ultimately depends on the specific use case, project requirements, and personal preference.

Related benchmarks:

Angular clone vs Lodash cloneDeep vs JSON Clone v1.1 (version: 0)

Comparing performance of: Lodash cloneDeep vs Json clone vs Angular copy

Created: 6 years ago by: Guest

Jump to the latest result

Lodash cloneDeep

Json clone

Angular copy

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):