Benchmark: isEqual vs JSON.stringify

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js" integrity="sha512-WFN04846sdKMIP5LKNphMaWzU7YpMyCU245etK3g/2ARYbPK9Ub18eG+ljU96qKRCWh+quCY7yefSmlkQw1ANQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

Script Preparation code:

var a = {};

Tests:

isEqual
a
Json.Stringify
a

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 benchmark json and explain what is being tested.

**Benchmark Overview**

The test compares two approaches:

1. `isEqual`: This approach uses the built-in JavaScript function `isEqual()` to compare two objects for equality.
2. `Json.Stringify`: This approach converts an object to a JSON string using the `JSON.stringify()` method and then compares it with another object.

**Pros and Cons of Each Approach**

### `isEqual` Approach

Pros:

* Fast execution: Since it's a built-in JavaScript function, it's highly optimized for performance.
* Easy to implement: The implementation is straightforward, and no additional libraries are required.

Cons:

* Can be fragile: If the objects being compared have different prototypes or properties, this approach may not work as expected.
* May not handle all data types: `isEqual()` only works with primitive values (e.g., numbers, strings) and references to other objects. It won't work correctly with more complex data structures like arrays or objects with custom properties.

### `Json.Stringify` Approach

Pros:

* Robustness: JSON.stringify() can handle a wide range of data types, including nested objects, arrays, and even dates.
* Flexibility: This approach allows for a more flexible comparison, as it takes into account the order of properties in the object.

Cons:

* Slower execution: Converting an object to a string using `JSON.stringify()` incurs additional overhead compared to the built-in `isEqual()` function.
* Additional library dependency: The benchmark uses Lodash's `isEqual` function, which may not be immediately familiar to some developers.

**Library Used: Lodash**

In this case, the benchmark uses Lodash's `isEqual` function from version 4.17.21. This library provides a more robust implementation of object equality checks compared to the built-in `isEqual()` function in JavaScript. The `isEqual()` function in Lodash can handle complex data structures and provides more accurate results.

**Other Considerations**

* **Device Platform**: The benchmark is run on a Mac OS X 10.15.7 desktop, which may affect the performance results due to differences in hardware or software configurations.
* **Browser**: The benchmark is executed in Google Chrome version 103, which might impact the results due to variations in browser implementation.

**Alternative Approaches**

Some alternative approaches for comparing objects could include:

* Using a custom implementation of object equality checks
* Utilizing other libraries like `jsdiff` or `structured-sql`
* Employing a hybrid approach that combines both built-in functions and Lodash's `isEqual` function

Keep in mind that these alternatives might not provide the same level of performance, robustness, or ease of use as the approaches tested in this benchmark.

Related benchmarks:

isEqual vs JSON.stringify (version: 0)

Comparing performance of: isEqual vs Json.Stringify

Created: 3 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):