Benchmark: HY's Lodash cloneDeep vs JSON Clone vs Ramda Clone

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js'></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.26.1/ramda.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));
Ramda clone
myCopy = R.clone(MyObject);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Json clone
Ramda 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):

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks.

The provided JSON represents a benchmark test created using MeasureThat.net, which compares the performance of three different methods to create a deep copy of an object: Lodash's `cloneDeep`, JSON's `parse` and `stringify` methods, and Ramda's `clone`.

**Options compared:**

1. **Lodash cloneDeep**: This method uses Lodash's `cloneDeep` function, which creates a shallow copy of the source object by recursively cloning its properties.
2. **JSON Clone**: This method uses JavaScript's built-in `parse` and `stringify` methods to create a deep copy of the source object. The idea is that by parsing the stringified version of the original object, we can recreate it exactly as it was originally.
3. **Ramda clone**: This method uses Ramda's `clone` function, which creates a deep copy of the source object by recursively cloning its properties.

**Pros and Cons:**

*   **Lodash cloneDeep**:
    *   Pros: Lodash is a well-maintained library with a wide range of utility functions. `cloneDeep` is specifically designed for creating deep copies.
    *   Cons: It requires an additional import, which might add to the benchmark's overall size.
*   **JSON Clone**:
    *   Pros: This method uses built-in JavaScript functions, making it potentially faster since no external library needs to be loaded. Also, JSON is a widely supported format.
    *   Cons: The idea relies on parsing the stringified object which can be slower than directly cloning its properties.
*   **Ramda clone**:
    *   Pros: Ramda is another well-maintained and popular utility library with a deep copy function. Like Lodash, it's specifically designed for this task.
    *   Cons: Requires an additional import.

Regarding the libraries:

1.  **Lodash**: A widely used JavaScript utility library that provides various functions for tasks such as array manipulation, object transformation, and more. `cloneDeep` is part of its feature set.
2.  **Ramda**: A functional programming library for JavaScript that offers a different approach to handling data transformations, comparisons, and more.

If you're familiar with special JS features or syntax, keep in mind that the benchmark focuses on basic object cloning methods without any advanced or niche functionality.

**Other alternatives:**

In addition to these three options, there are other methods to create deep copies of objects in JavaScript. Some examples include:

*   **Spread operator (`{ ...obj }`)** and `Object.assign()` with shallow copying (not a true deep copy).
*   **For loops or recursion for manual property cloning**.

These alternatives can be faster than the methods used here but also more error-prone, especially when dealing with complex objects.

Related benchmarks:

HY's Lodash cloneDeep vs JSON Clone vs Ramda Clone (version: 0)

Comparing performance of: Lodash cloneDeep vs Json clone vs Ramda clone

Created: 4 years ago by: Guest

Jump to the latest result

Lodash cloneDeep

Json clone

Ramda 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):