Benchmark: Angular clone vs Lodash cloneDeep vs JSON Clone vs Lodash clone

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

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Json clone
Angular copy
lodash clone

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 explaining the benchmark.

**Benchmark Overview**

The provided JSON represents a JavaScript microbenchmark that compares the performance of different cloning methods for objects and arrays: Lodash's `cloneDeep` and `clone`, Angular's `copy`, and `JSON.parse(JSON.stringify())`.

**Cloning Methods Comparison**

Here are the individual test cases:

1. **Lodash cloneDeep**: Clones an object using Lodash's `cloneDeep` method, which creates a deep copy of the source object.
2. **JSON Clone**: Clones an object using the `JSON.parse(JSON.stringify())` method, which serializes the object to a JSON string and then parses it back into an object. This method only works for objects that can be serialized (e.g., numbers, booleans, null, arrays).
3. **Angular copy**: Clones an object using Angular's `copy` function.
4. **Lodash clone**: Clones an object using Lodash's `clone` method, which creates a shallow copy of the source object.

**Pros and Cons**

1. **Lodash cloneDeep**:
	* Pros: Creates a deep copy of the source object, preserving all nested properties and arrays.
	* Cons: Slower than other methods due to its recursive cloning process.
2. **JSON Clone**:
	* Pros: Simple and efficient for simple objects with only primitive values.
	* Cons: Fails to clone complex objects or those with non-serializable values (e.g., functions, dates).
3. **Angular copy**:
	* Pros: Fast and lightweight cloning mechanism specific to Angular applications.
	* Cons: Not designed for general-purpose object cloning; may not work correctly with all types of data structures.
4. **Lodash clone**:
	* Pros: Faster than `cloneDeep` due to its non-recursive cloning process, but still preserves nested properties.
	* Cons: Fails to clone arrays or other complex data structures.

**Library and Syntax**

1. Lodash is a popular JavaScript utility library that provides various functions for tasks like cloning, string manipulation, and more. The `cloneDeep` and `clone` methods are part of this library.
2. Angular is a JavaScript framework used for building web applications. The `copy` function is part of the Angular core module.

**Other Considerations**

* When working with large or complex objects, `cloneDeep` is often the best choice due to its ability to preserve all nested properties and arrays.
* For simple objects with only primitive values, `JSON.parse(JSON.stringify())` can be a fast and efficient option.
* If you're building an Angular application, using `Angular.copy` for object cloning might be the most suitable option.

**Alternatives**

If you need alternative cloning methods, consider:

1. **Recursion**: You can implement your own recursive cloning function using JavaScript's built-in `Object.assign()` method or a custom implementation.
2. **Library alternatives**: Other libraries like Immutable.js or Ramda provide similar cloning functions that might be worth exploring.
3. **Native object copying**: Some browsers (e.g., Chrome) have native `Object.copy()` methods that can be used for simple cloning tasks.

In conclusion, this benchmark provides a useful comparison of different cloning methods in JavaScript. Understanding the pros and cons of each method will help you choose the best approach for your specific use cases.

Related benchmarks:

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

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

Created: 6 years ago by: Guest

Jump to the latest result

Lodash cloneDeep

Json clone

Angular copy

lodash clone

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):