Benchmark: uri1 Lodash.isEqual vs JSON.stringify Equality Comparison for Shallow Array of Strings.

HTML Preparation code:

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

Script Preparation code:

var A = {
  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 B = {
  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...'
  }
};

Tests:

_.isEqual
_.isEqual(A, B)
JSON.stringify
JSON.stringify(A) === JSON.stringify(B);

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:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:120.0) Gecko/20100101 Firefox/120.0

Browser/OS: Firefox 120 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
_.isEqual	1153614.2 Ops/sec
JSON.stringify	1337405.1 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON benchmark definition and individual test cases.

**Benchmark Definition**

The benchmark defines two different approaches for comparing equality between two objects: `lodash.isEqual` and `JSON.stringify Equality Comparison`. The purpose of this benchmark is to compare the performance of these two approaches on a shallow array of strings.

**Script Preparation Code**

The script preparation code defines two objects, A and B, which are used as inputs for the benchmark. Object A contains properties that will be used to test the equality comparison:

* `description`: a string
* `myNumber`: an integer
* `myBoolean`: a boolean
* `jayson`: an object with `stringify` and `parse` properties

Object B is identical to object A, but with some minor differences in property names.

**Html Preparation Code**

The HTML preparation code includes a script tag that loads the Lodash library (version 4.17.4) from a CDN, which will be used by the benchmark for the `_isEqual` function.

**Individual Test Cases**

There are two test cases:

1. **_.isEqual(A, B)**: This test case compares the equality of objects A and B using the `_isEqual` function from Lodash.
2. **JSON.stringify(A) === JSON.stringify(B);**: This test case compares the equality of objects A and B by converting them to strings using `JSON.stringify` and then comparing the resulting strings.

**Options Compared**

The benchmark is testing two different approaches for comparing equality:

1. **Lodash `_isEqual` function**
	* Pros:
		+ Provides a more comprehensive comparison of object properties, including nested objects and arrays.
		+ Handles cases where objects are deeply nested or contain cyclic references.
	* Cons:
		+ May be slower due to its more complex implementation.
2. **JSON.stringify Equality Comparison**
	* Pros:
		+ Fast and lightweight, with a simple implementation.
	* Cons:
		+ Only compares the surface-level equality of object properties, ignoring nested objects or arrays.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides various functions for tasks such as array manipulation, object manipulation, and string manipulation. The `_isEqual` function from Lodash is specifically designed to compare the equality of two values, including objects and arrays.

**Special JS Feature/Syntax**

None mentioned in this benchmark definition.

**Other Alternatives**

If you need a more comprehensive comparison or want to explore other options, consider using:

1. **JSON Schema**: A library that provides a way to validate and compare JSON data against a schema.
2. **Object.keys() and `===`**: A simple approach that compares the surface-level equality of object properties using the `keys()` method and the `===` operator.
3. **V8's built-in `Structural Equality`**: The V8 JavaScript engine provides a built-in structural equality algorithm for comparing objects, which is used by the `JSON.stringify` function.

Keep in mind that each approach has its trade-offs in terms of performance, complexity, and use cases.

Related benchmarks:

uri1 Lodash.isEqual vs JSON.stringify Equality Comparison for Shallow Array of Strings. (version: 0)

Test on isEqual performance

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

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