Benchmark: Lodash.isEqual vs JSON.stringify Equality Comparison for Objects - diff case

HTML Preparation code:

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

Script Preparation code:

window.foo = {id:"059ffc63-3fb1-41e4-8fff-d7062a7c0f23",featureId:24324931,columnId:57599815,value:0,textValue:"",jsonValue:null};
window.bar = {id:"059ffc63-3fb1-41e4-8fff-d7062a7c0f23",featureId:24324932,columnId:57599815,value:0,textValue:"",jsonValue:null};

Tests:

isEqual
_.isEqual(window.foo, window.bar)
JSON.stringify
JSON.stringify(window.foo) === JSON.stringify(window.bar);

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 dive into the world of JavaScript microbenchmarks.

**Benchmark Overview**

The provided benchmark compares two approaches to check for equality between two objects: Lodash's `isEqual` function and simple JSON string comparison using `JSON.stringify`. The test cases are designed to demonstrate the performance differences between these two methods.

**Options Compared**

There are two options being compared:

1. **Lodash's `isEqual` function**: This is a utility function from the Lodash library that recursively checks if two values are equal.
2. **Simple JSON string comparison using `JSON.stringify`**: This approach converts both objects to JSON strings and then compares them using the `===` operator.

**Pros and Cons of Each Approach**

1. **Lodash's `isEqual` function**:
	* Pros:
		+ Provides a robust and flexible way to compare complex data structures.
		+ Handles edge cases such as null, undefined, and circular references.
	* Cons:
		+ Adds an external dependency (the Lodash library) which may impact benchmark performance.
		+ Can be slower due to the recursive nature of the function.
2. **Simple JSON string comparison using `JSON.stringify`**:
	* Pros:
		+ Does not require any additional dependencies or overhead.
		+ Can be faster since it only converts objects to strings and compares them directly.
	* Cons:
		+ May not handle complex data structures correctly (e.g., circular references).
		+ May produce different results due to differences in object representation.

**Library and Purpose**

The Lodash library is a popular utility function that provides a wide range of functions for tasks such as array manipulation, string normalization, and more. In this benchmark, the `isEqual` function is used to compare two objects recursively, handling edge cases and ensuring accurate results.

**Special JS Feature or Syntax**

There are no special JavaScript features or syntaxes mentioned in this benchmark. However, it's worth noting that the use of Lodash's `isEqual` function requires importing the library, which may impact benchmark performance due to the additional overhead.

**Other Alternatives**

If you're looking for alternative approaches to comparing objects, here are a few options:

1. **JSON Schema**: A library that provides a way to validate and compare data structures using JSON schema.
2. **DeepEqual**: A function from the Lodash library (similar to `isEqual`) specifically designed for deep object equality checks.
3. **Manual comparison**: You can write your own custom function to compare objects, handling edge cases and complex data structures.

These alternatives may offer different trade-offs in terms of performance, accuracy, and overhead, so it's essential to choose the approach that best fits your specific use case.

Related benchmarks:

Lodash.isEqual vs JSON.stringify Equality Comparison for Objects - diff case (version: 0)

Comparing performance of: isEqual vs JSON.stringify

Created: 2 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):