Benchmark: Lodash cloneDeep 4.17.10 vs JSON Clone

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/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));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Json clone

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.

Let's break down the provided benchmark definition and test cases to understand what is being tested.

**Benchmark Definition**

The benchmark definition is represented by a JSON object with two main properties: `Script Preparation Code` and `Html Preparation Code`.

* `Script Preparation Code`: This code is executed before running each test case. It defines an object called `MyObject` that contains various values, including numbers, booleans, and another object `jayson`. The script also declares a variable `myCopy` that will be used to store the result of each benchmark.
* `Html Preparation Code`: This code is executed before running each test case. It includes a reference to an external JavaScript library called Lodash (version 4.17.10).

**Individual Test Cases**

The benchmark definition includes two test cases:

1. **Lodash cloneDeep**: This test case uses the Lodash library's `cloneDeep` function to create a deep copy of the `MyObject` object.
2. **Json clone**: This test case uses the built-in `JSON.parse(JSON.stringify(MyObject))` method to create a deep copy of the `MyObject` object.

**Options being compared**

The two options being compared are:

1. **Lodash cloneDeep**: Uses the Lodash library's `cloneDeep` function, which is designed to create a deep copy of an object.
2. **Json clone**: Uses the built-in `JSON.parse(JSON.stringify(MyObject))` method, which is also used by the Lodash library for cloning.

**Pros and Cons**

Here are some pros and cons of each approach:

* **Lodash cloneDeep**:
	+ Pros: The Lodash library provides a robust implementation that can handle complex object structures.
	+ Cons: Requires an additional external library, which may impact performance or require additional setup.
* **Json clone**:
	+ Pros: Built-in method, no additional external dependencies required.
	+ Cons: May not perform as well for large or deeply nested objects.

**Library usage**

The Lodash library is used in the benchmark definition for the `cloneDeep` function. The library provides a robust implementation of deep cloning, which can handle complex object structures.

**Special JS feature or syntax**

There doesn't appear to be any special JavaScript features or syntax being tested in this benchmark. However, it's worth noting that some browsers may have specific optimizations or behaviors when using the `JSON.parse(JSON.stringify(MyObject))` method.

**Other alternatives**

Some alternative approaches to deep cloning could include:

1. **Using a custom implementation**: Creating a custom function that manually iterates over the object properties and creates new copies.
2. **Using a library like Immutable.js**: A library specifically designed for immutable data structures, which can provide a more robust and efficient way of cloning objects.
3. **Using a library like DeepClone**: Another library specifically designed for deep cloning, which may offer better performance or features compared to Lodash.

Keep in mind that the best approach will depend on the specific use case and requirements.

Related benchmarks:

Lodash cloneDeep 4.17.10 vs JSON Clone (version: 0)

Comparing performance of: Lodash cloneDeep vs Json clone

Created: 6 years ago by: Guest

Jump to the latest result

Lodash cloneDeep

Json 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):