Benchmark: Angular clone vs Lodash clone vs JSON Clone vs Object.assign

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...'
  }
};

var myCopy = null;

Tests:

Lodash clone
myCopy = _.clone(MyObject);
Json clone
myCopy = JSON.parse(JSON.stringify(MyObject));
Angular copy
myCopy = angular.copy(MyObject);
object assign
myCopy = Object.assign({}, MyObject);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash clone
Json clone
Angular copy
object assign

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

**Overview of the Benchmark**

The provided JSON represents a JavaScript benchmarking test case that compares the performance of four different methods for creating a deep copy of an object: Lodash's `clone` function, JSON's `parse` and `stringify` functions, AngularJS's `copy` function, and the built-in `Object.assign` method.

**Test Case 1: Lodash Clone**

* **Library:** Lodash
* **Purpose:** Lodash is a utility library that provides various functions for tasks such as array manipulation, string manipulation, and object manipulation. In this case, the `clone` function creates a deep copy of an object.
* **Pros:** Lodash's `clone` function is designed to handle complex objects with nested structures, making it suitable for creating deep copies.
* **Cons:** Using a separate library like Lodash may introduce additional overhead and dependencies.

**Test Case 2: JSON Clone**

* **Library:** None (built-in JavaScript functions)
* **Purpose:** The `parse` function parses a JSON string into a JavaScript object, while the `stringify` function converts a JavaScript object to a JSON string. By using these functions together, it creates a deep copy of an object.
* **Pros:** This method is lightweight and doesn't introduce any additional dependencies. It's also a native JavaScript solution.
* **Cons:** This approach may not be as efficient as others, especially for complex objects.

**Test Case 3: Angular Copy**

* **Library:** AngularJS
* **Purpose:** The `copy` function creates a deep copy of an object in AngularJS.
* **Pros:** Angular's `copy` function is designed to handle complex objects and provides a shallow copy by default, which can be sufficient for many use cases.
* **Cons:** Using AngularJS introduces additional overhead and dependencies. It may not be suitable for projects that don't use Angular.

**Test Case 4: Object Assign**

* **Library:** None (built-in JavaScript functions)
* **Purpose:** The `Object.assign` method creates a new object by copying the properties of an existing object.
* **Pros:** This is a lightweight, native JavaScript solution that doesn't introduce any additional dependencies.
* **Cons:** By default, `Object.assign` performs a shallow copy, which may not be sufficient for complex objects.

**Special JS Features and Syntax**

None mentioned in the provided information.

**Other Alternatives**

Some other methods for creating deep copies of objects include:

1. **For...in loop**: This method iterates over the object's properties and creates a new object with the same properties.
2. **Array.prototype.slice()**: This method can be used to create an array copy, but it may not work as expected if the original object is not an array.
3. **JSON.parse(JSON.stringify(obj))**: This method uses JSON serialization to create a deep copy of an object.
4. **util.deserialize(obj)**: This method is part of the built-in Node.js `util` module and creates a deep copy of an object.

Each of these alternatives has its own strengths and weaknesses, and the choice of which one to use depends on the specific requirements and constraints of the project.

Related benchmarks:

Angular clone vs Lodash clone vs JSON Clone vs Object.assign (version: 0)

Comparing performance of: Lodash clone vs Json clone vs Angular copy vs object assign

Created: 7 years ago by: Guest

Jump to the latest result

Lodash clone

Json clone

Angular copy

object assign

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):