Benchmark: cloneDeep: lodash vs. stringify-parse

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var originalObject = {
    description: 'This is my original object',
    age: 1233234,
    isObject: true,
    nestedObject: {
        a: 'This is a child property.',
        b: 'And another \n',
        c: true,
        d: 123423
    }
};

var copiedObject = null;

Tests:

Lodash cloneDeep
copiedObject = _.cloneDeep(originalObject);
JSON stringify-parse
copiedObject = JSON.parse(JSON.stringify(originalObject));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
JSON stringify-parse

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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I'll break down the provided benchmark definition, test cases, and results.

**Benchmark Definition:**
MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided JSON represents a benchmark called "cloneDeep: lodash vs. stringify-parse".

In this benchmark, two approaches are being compared:

1. **Lodash cloneDeep**: This method uses the Lodash library to create a deep copy of the original object.
2. **JSON stringify-parse**: This method uses the `JSON.parse(JSON.stringify(originalObject))` syntax to create a deep copy of the original object.

**Options Compared:**
The two options are compared in terms of execution time, which is measured in executions per second (ExecutionsPerSecond).

**Pros and Cons:**

* **Lodash cloneDeep**: This method uses a dedicated library that provides a robust implementation of deep copying. The pros are:
	+ Well-tested and reliable.
	+ Handles complex data structures with ease.
	+ Provides additional features like array and object manipulation.
However, the cons are:
	+ Introduces an external dependency (the Lodash library).
	+ May have performance overhead due to the library's initialization.
* **JSON stringify-parse**: This method is a built-in JavaScript syntax that creates a deep copy of an object by serializing it as JSON and then parsing it back into an object. The pros are:
	+ No external dependencies or performance overhead.
	+ Lightweight and efficient.
However, the cons are:
	+ May not handle all edge cases or complex data structures correctly.
	+ Can be slower than Lodash cloneDeep due to the parsing step.

**Library:**
In this benchmark, the Lodash library is used for its `cloneDeep` function. Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks like array and object manipulation, string formatting, and more.

The `JSON.stringify(JSON.parse(...))` syntax uses the built-in JavaScript `Stringify()` and `Parse()` methods to create a deep copy of an object. These methods are also part of the standard JavaScript library.

**Special JS Features/Syntax:**
There is no special JavaScript feature or syntax mentioned in this benchmark, other than using the Lodash library for `cloneDeep`.

**Other Alternatives:**
If you're looking for alternative ways to create deep copies of objects in JavaScript, here are a few options:

* **Using the spread operator (`{...originalObject}`)**: This method creates a shallow copy of an object by spreading its properties into a new object.
* **Using `Object.assign()`**: This method creates a shallow copy of an object by copying its enumerable own properties to a new object.
* **Implementing your own deep copying function**: You can create a custom function that recursively iterates through the object's properties and creates new objects for each nested property.

Keep in mind that these alternatives may not provide the same level of performance or reliability as using Lodash cloneDeep or the `JSON.stringify(JSON.parse(...))` syntax.

Related benchmarks:

cloneDeep: lodash vs. stringify-parse (version: 0)

Comparing performance of: Lodash cloneDeep vs JSON stringify-parse

Created: 4 years ago by: Guest

Jump to the latest result

Lodash cloneDeep

JSON stringify-parse

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):