Benchmark: lmao dude - MeasureThat.net

HTML Preparation code:


<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
myCopy = _.cloneDeep(MyObject);
omg
myCopy = JSON.parse(JSON.stringify(MyObject));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash
omg

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

**Benchmark Overview**

The provided JSON represents a JavaScript microbenchmark created on MeasureThat.net. The benchmark aims to compare the performance of two methods for creating a deep copy of an object: using Lodash's `cloneDeep` function and using the built-in `JSON.parse(JSON.stringify())` method.

**Script Preparation Code**

The script preparation code defines a JavaScript object `MyObject` with various properties, including numeric, boolean, and nested JSON-like objects. The `jayson` property contains string literals that represent the purpose of each method being tested.

```javascript
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...'
  }
};
```

**Html Preparation Code**

The HTML preparation code includes a script tag that loads the Lodash library version 4.17.5.

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

**Individual Test Cases**

There are two test cases defined:

1. **Lodash**: Creates a deep copy of `MyObject` using Lodash's `cloneDeep` function.

```javascript
myCopy = _.cloneDeep(MyObject);
```

2. **omg**: Attempts to create a deep copy of `MyObject` by parsing the stringification of `MyObject`, then assigning it back to `myCopy`.

```javascript
myCopy = JSON.parse(JSON.stringify(MyObject));
```

**Pros and Cons**

1. **Lodash (`cloneDeep`)**:
	* Pros: Well-tested, efficient, and widely used library for deep copying objects.
	* Cons: Requires additional library (Lodash) to be loaded, may have slower startup time due to loading overhead.
2. **Built-in `JSON.parse(JSON.stringify())`**:
	* Pros: Built-in method, faster startup time since no additional libraries need to be loaded.
	* Cons: May not work correctly for all types of objects (e.g., Date, RegExp), may not preserve metadata (e.g., constructor, prototype).

**Library and Syntax**

* Lodash (`cloneDeep`): A popular utility library that provides a range of functions for working with JavaScript data structures. In this benchmark, it's used to create a deep copy of the `MyObject`.
	+ Pros: Well-maintained, widely tested, efficient.
	+ Cons: Requires additional library to be loaded.

**Other Considerations**

* **Performance**: The built-in `JSON.parse(JSON.stringify())` method may have performance advantages due to its simpler implementation and faster execution speed. However, it's not guaranteed to work correctly for all types of objects.
* **Robustness**: Lodash's `cloneDeep` function is generally more robust and can handle a wider range of object types and edge cases.

**Alternatives**

Other methods for creating deep copies of objects in JavaScript include:

1. Using the `Object.assign()` method: Not recommended, as it creates a shallow copy.
2. Using `Array.prototype.slice()`: May not work correctly for all types of objects (e.g., Date, RegExp).
3. Implementing a custom cloning function using recursion or iteration.

In summary, while both methods have their pros and cons, Lodash's `cloneDeep` function is generally the most reliable and efficient choice for creating deep copies of objects in JavaScript.

Related benchmarks:

lmao dude (version: 0)

lmao dude

Comparing performance of: lodash vs omg

Created: 5 years ago by: Guest

Jump to the latest result

lodash

omg

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):