Benchmark: Lodash Deep Clone vs Native Parsing

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js'></script>

Script Preparation code:

var testArray = {
  description: 'Random description.',
  testNumber: 123456789,
  testBoolean: true,
  testObject: {
    testString: 'test string',
    testNumber: 12345
  },
  testArray: [{
    myName: 'test name',
    myNumber: 123245
  }]
};

var testCopy;

Tests:

Lodash cloneDeep
testCopy = _.cloneDeep(testArray);
Native
testCopy = JSON.parse(JSON.stringify(testArray));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Native

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 world of MeasureThat.net and explore what's being tested in this specific benchmark.

**What is being tested?**

The benchmark compares two approaches to create a copy of an object: using Lodash's `cloneDeep` function versus native JSON parsing with `JSON.parse(JSON.stringify())`.

**Options compared:**

1. **Lodash cloneDeep**: This approach uses the `cloneDeep` function from Lodash, which is a popular utility library for JavaScript.
2. **Native JSON parsing**: This approach manually creates a copy of the object by wrapping it in another JSON object and then parsing it back into an object.

**Pros and cons of each approach:**

1. **Lodash cloneDeep**:
	* Pros:
		+ More convenient and concise code
		+ Handles complex data structures like arrays and objects with circular references
	* Cons:
		+ Requires the Lodash library to be included, which may add unnecessary size to the benchmark
2. **Native JSON parsing**:
	* Pros:
		+ No external dependencies required
		+ Can be faster for simple objects or in situations where the object is already in a JSON-like format
	* Cons:
		+ More verbose and error-prone code
		+ May not handle complex data structures correctly

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks like array manipulation, string formatting, and object cloning. The `cloneDeep` function is specifically designed to create deep copies of objects, including arrays with nested objects.

**Special JS feature or syntax: None mentioned in this benchmark**

However, it's worth noting that Lodash itself uses JavaScript features like closures and prototypes to implement its functions. But these details are not relevant to the specific benchmark being tested.

**Other alternatives:**

If you're looking for alternative approaches to deep object cloning, some other options include:

1. **Using `Object.assign()`**: This method creates a shallow copy of an object, but can be used as a starting point for creating deeper copies.
2. **Using a library like Immutable.js**: This library provides immutable data structures and functions for creating deep copies.
3. **Writing your own recursive function**: If you're feeling adventurous, you could write your own function to recursively clone objects!

In general, the choice of approach depends on the specific requirements of your project and personal preference. MeasureThat.net's benchmark is a useful tool for comparing performance characteristics of different approaches.

Related benchmarks:

Lodash Deep Clone vs Native Parsing (version: 0)

Comparing performance of: Lodash cloneDeep vs Native

Created: 3 years ago by: Guest

Jump to the latest result

Lodash cloneDeep

Native

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):