Benchmark: dequal - MeasureThat.net

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/dequal"></script>

Script Preparation code:

window.mock = ['asdfd', [
            { count: 1569, id: 1205, title: 'Asien' },
            { count: 205, id: 766, title: 'Donau' },
            { count: 750, id: 1159, title: 'Emirate und Orient' },
            { count: 675, id: 1042, title: 'Kanarische Inseln' },
            { count: 2719, id: 1037, title: 'Karibik' },
            { count: 3461, id: 768, title: 'Mittelmeer' },
        ]];
window.test = ['asdfd', [
            { count: 1569, id: 1205, title: 'Asien' },
            { count: 205, id: 766, title: 'Donau' },
            { count: 750, id: 1159, title: 'Emirate und Orient' },
            { count: 675, id: 1042, title: 'Kanarische Inseln' },
            { count: 2719, id: 1037, title: 'Karibik' },
            { count: 3461, id: 768, title: 'Mittelmeer' },
        ]];

Tests:

dequal
dequal(window.mock, window.test)
stringify
JSON.stringify(window.mock) === JSON.stringify(window.test)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
dequal
stringify

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser/OS: Chrome 135 on Windows

View result in a separate tab

Test name	Executions per second
dequal	0.0 Ops/sec
stringify	729481.3 Ops/sec

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

LLMs can make mistakes. Check important info.

**Overview of the Benchmark**

The provided benchmark measures the performance difference between two approaches to compare arrays in JavaScript: `dequal` and `JSON.stringify()`.

**What is Tested?**

In the "Benchmark Definition" JSON, we have two test cases:

1. `"dequal(window.mock, window.test)"`
2. `"JSON.stringify(window.mock) === JSON.stringify(window.test)"`

These tests aim to determine which approach is faster for comparing arrays in JavaScript.

**Options Compared: dequal vs. JSON.stringify()**

**dequal**: `dequal` is a lightweight library that provides a simple way to compare arrays and objects. It's designed to be fast and efficient, making it suitable for performance-critical applications.

**JSON.stringify()**: This is the built-in JavaScript function that converts an object or array to a string representation. By comparing the resulting strings, we can determine if two arrays are equal.

**Pros and Cons:**

**dequal**:

Pros:

* Fast and efficient
* Lightweight library with minimal overhead

Cons:

* Only works for arrays and objects
* May not work as expected for custom data structures or edge cases

**JSON.stringify()**:

Pros:

* Works for all types of JavaScript objects (arrays, objects, etc.)
* Portable across different browsers and environments

Cons:

* Has a higher overhead compared to `dequal`
* Can be slower due to the stringification process

**Library: dequal**

The `dequal` library is a small, fast, and lightweight library that provides a simple way to compare arrays and objects. Its purpose is to make it easy to write performance-critical code by providing an efficient way to verify that two data structures are equal.

**Special JS Features/Syntax: None**

There are no special JavaScript features or syntax used in this benchmark that would require additional explanation.

**Other Considerations:**

* The `JSON.stringify()` approach may not work as expected for custom data structures or edge cases, which could affect performance.
* If the input arrays are large, the `dequal` library may be faster due to its optimized implementation.
* The benchmark results will provide insights into the relative performance of these two approaches.

**Alternatives:**

Other alternatives for comparing arrays and objects in JavaScript include:

* Lodash's `isEqual()` function
* Immutable.js's `deepEqual()` function
* JavaScript's built-in `Array.prototype.every()` method (not recommended due to its slower performance)

Keep in mind that the choice of comparison library or approach depends on the specific use case, performance requirements, and personal preference.

Related benchmarks:

dequal (version: 0)

Comparing performance of: dequal vs stringify

Created: 6 years ago by: Guest

Jump to the latest result

dequal

stringify

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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