Benchmark: TestByk- Lodash.isEqual vs JSON.stringify Equality Bench mark

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

window.foo = ['cat', 'dog', 'bird', 'cat', 'dog', 'bird', 'cat', 'dog', 'bird', 'cat', 'dog', 'bird', 'cat', 'dog', 'bird'];
window.bar = ['cat', 'dog', 'bird', 'cat', 'dog', 'bird', 'cat', 'dog', 'bird', 'cat', 'dog', 'bird', 'cat', 'dog', 'bird'];

Tests:

_.isEqual
_.isEqual(window.foo, window.bar)
JSON.stringify
JSON.stringify(window.foo) === "[\"cat\",\"dog\",\"bird\", \"cat\",\"dog\",\"bird\", \"cat\",\"dog\",\"bird\", \"cat\",\"dog\",\"bird\", \"cat\",\"dog\",\"bird\"]"

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.isEqual
JSON.stringify

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 break down the provided JSON data to understand what is being tested and the different approaches being compared.

**Benchmark Definition**

The benchmark is testing two methods: `lodash.isEqual` and `JSON.stringify Equality`.

**What is being tested?**

* `_.isEqual(window.foo, window.bar)`: This test case uses the Lodash library (`_.`) to compare two arrays, `window.foo` and `window.bar`, for equality. The comparison is done using the `isEqual` function from Lodash.
* `JSON.stringify(window.foo) === "..."` : This test case compares the string representation of an array (`window.foo`) with a hardcoded JSON string.

**Options compared**

The benchmark is comparing two options:

1. **Using Lodash's `isEqual` function**: This approach uses a dedicated library to perform the equality check.
2. **Manual stringification and comparison**: This approach manually converts the array to a string using `JSON.stringify()` and then compares it with the hardcoded JSON string.

**Pros and Cons of each approach**

1. **Using Lodash's `isEqual` function**:
	* Pros:
		+ Efficient: Lodash provides an optimized implementation for equality checks.
		+ Robust: It can handle complex data structures, such as nested arrays and objects.
	* Cons:
		+ External dependency: The benchmark requires the Lodash library to be included.
		+ Potential overhead: Including a separate library might introduce unnecessary overhead.
2. **Manual stringification and comparison**:
	* Pros:
		+ Lightweight: This approach doesn't require any external libraries.
		+ Simple: It's a straightforward, manual implementation.
	* Cons:
		+ Less efficient: Manually converting arrays to strings can be slower than using a dedicated equality function.
		+ More prone to errors: Manual stringification can lead to errors if not done correctly.

**Library and its purpose**

In the benchmark definition, `window.foo` and `window.bar` are used as test data. The `lodash.min.js` library is included via a CDN link (`https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js`). Lodash is a utility library that provides various functions for tasks like equality checks, array manipulation, and more.

**Special JS feature or syntax**

There are no special JavaScript features or syntax mentioned in the benchmark definition. The code uses standard JavaScript syntax and data types (arrays, objects).

**Other alternatives**

If you're looking for alternative approaches to equality checking in JavaScript, consider:

1. **Using `===` operator**: This is a built-in comparison operator that can be used to compare values directly.
2. **Using `JSON.stringify()` with a custom replacer function**: You can use the `JSON.stringify()` method with a custom replacer function to convert complex data structures to strings.

Keep in mind that these alternatives may not offer the same level of efficiency or robustness as Lodash's `isEqual` function, but they might be suitable for specific use cases where external dependencies are not acceptable.

Related benchmarks:

TestByk- Lodash.isEqual vs JSON.stringify Equality Bench mark (version: 0)

Test on isEqual performance

Comparing performance of: _.isEqual vs JSON.stringify

Created: 5 years ago by: Guest

Jump to the latest result

_.isEqual

JSON.stringify

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):