Benchmark: Lodash isEqual vs JSON serialize

HTML Preparation code:

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

Script Preparation code:

window.address1 = [{ childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }];
window.address2 = [{ childrenIndex: 1 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }];

const serializeAddress = (address) => JSON.stringify(address);

window.compareAddress = (a1, a2) => serializeAddress(a1) === serializeAddress(a2);

Tests:

Lodash isEqual
_.isEqual(window.address1, window.address2)
Native compare
compareAddress(window.address1, window.address2)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash isEqual
Native compare

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 provided benchmark definition and explore what's being tested.

**Benchmark Definition:**

The test has two main components:

1. **Lodash isEqual vs JSON serialize**: This is the primary test case. It compares the performance of two approaches:
	* **Lodash isEqual**: Using the Lodash library to compare the `window.address1` and `window.address2` arrays.
	* **JSON serialize**: Directly serializing both arrays using `JSON.stringify()` and comparing the results.
2. **Html Preparation Code**: The benchmark includes a script tag that loads the Lodash library from a CDN.

**Options Compared:**

The two approaches being compared are:

1. Using the Lodash `isEqual` function, which is likely implemented in JavaScript (not shown in the benchmark definition).
2. Directly serializing arrays using `JSON.stringify()`.

**Pros and Cons of Each Approach:**

1. **Lodash isEqual**:
	* Pros:
		+ Likely to be more efficient, as it's optimized for equality checks.
		+ May handle edge cases better (e.g., null or undefined values).
	* Cons:
		+ Requires loading an external library.
		+ Might have a slight overhead due to the function call and parameter passing.
2. **JSON serialize**:
	* Pros:
		+ No additional library required.
		+ Simple and straightforward implementation.
	* Cons:
		+ May be slower due to the stringification process.
		+ Might not handle edge cases as well (e.g., null or undefined values).

**Library:**

The Lodash library is a popular JavaScript utility library that provides various functions for tasks like array manipulation, object traversal, and more. In this case, `_.isEqual` is likely used to compare the arrays.

**Special JS Feature/Syntax:**

There's no apparent special feature or syntax being tested in this benchmark definition.

**Benchmark Preparation Code Explanation:**

The preparation code sets up two identical arrays, `window.address1` and `window.address2`, which are then passed to the test functions. The `serializeAddress` function is defined to serialize an address (an array) using `JSON.stringify()`. Finally, a comparison function `compareAddress` is created, which uses `serializeAddress` to compare two addresses.

**Other Alternatives:**

If you wanted to modify this benchmark or create a new one, here are some alternative approaches:

* Use a different equality check library, like `eq` from jQuery.
* Implement your own custom equality check function instead of using Lodash.
* Compare the arrays directly without serializing them (e.g., using `===`).
* Test with more complex data structures or edge cases.
* Experiment with different serialization methods (e.g., `JSON.stringify()` vs. `stringification`).

Keep in mind that these alternatives would require changes to the benchmark definition and preparation code.

Related benchmarks:

Lodash isEqual vs JSON serialize (version: 0)

Comparing performance of: Lodash isEqual vs Native compare

Created: 3 years ago by: Registered User

Jump to the latest result

Lodash isEqual

Native compare

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):