Benchmark: jquery.getJson vs fetch

HTML Preparation code:

<script src='https://code.jquery.com/jquery-3.6.0.min.js'></script>

Script Preparation code:

function showResult(data) {
    console.log(data);
}
var newUrl = "https://www.googleapis.com/discovery/v1/apis";

Tests:

ajax
$.getJSON("https://jsonplaceholder.typicode.com/users?callback=?", function(json){ console.log('getJSON call: ', json); });
fetch
fetch('https://jsonplaceholder.typicode.com/users?callback=?').then(function(data){ console.log('fetch API call: ', data); });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
ajax
fetch

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

I'd be happy to explain what's being tested in this benchmark and the different approaches compared.

**What's being tested?**

The benchmark is testing two different approaches for making HTTP requests to fetch JSON data:

1. **jQuery's $.getJSON() method**: This approach uses the jQuery library to make a GET request to the specified URL, parsing the response as JSON.
2. **Fetch API**: This approach uses the Fetch API, a modern JavaScript interface for making HTTP requests.

**Options compared**

The benchmark is comparing the performance of these two approaches:

* **jQuery's $.getJSON() method vs Fetch API**: The benchmark is measuring how long it takes to make a GET request to a JSON endpoint using each of these approaches.
* **Callback vs Async/Await**: Not explicitly tested in this example, but both approaches have their pros and cons:
	+ Callbacks can be used with async/await by transforming the callback to an async function that returns a promise. This allows for more modern JavaScript practices while maintaining compatibility with older browsers.
	+ Async/await is generally considered better practice as it improves code readability, reduces errors, and makes asynchronous programming easier to understand.

**Pros and Cons of each approach**

* **jQuery's $.getJSON() method**
	+ Pros:
		- Easy to use for simple requests
		- Wide support across browsers
		- Can be used with other jQuery methods (e.g., $.ajax())
	+ Cons:
		- Not optimized for modern JavaScript best practices (async/await)
		- May lead to performance issues if not properly handled
* **Fetch API**
	+ Pros:
		- Modern and well-supported by most browsers
		- Allows for more flexibility and control over requests
		- Promotes async/await programming style
	+ Cons:
		- Steeper learning curve compared to jQuery's $.getJSON()
		- Requires a modern browser that supports the Fetch API

**Library and its purpose**

The library being used is jQuery, which provides a set of functions for DOM manipulation, event handling, and making HTTP requests. In this case, the `$` symbol represents the jQuery object, and the `$.getJSON()` method is used to make a GET request to the specified URL.

**Special JavaScript feature or syntax**

This benchmark does not explicitly use any special JavaScript features or syntax beyond what's required for the Fetch API and jQuery's $.getJSON() method. However, it's worth noting that some modern browsers may require additional flags or configuration options to enable the Fetch API or other JavaScript features.

**Other alternatives**

If you're looking for alternative libraries or methods for making HTTP requests in JavaScript, here are a few options:

* **Axios**: A popular library for making HTTP requests in Node.js and browser-side environments. It provides a more modern and flexible way of handling requests than jQuery's $.getJSON() method.
* **XMLHttpRequest** (XHR): A built-in JavaScript API for making HTTP requests that has been around since the early days of web development.
* **node-fetch**: A polyfill for the Fetch API in Node.js environments, allowing you to use the modern Fetch API with Node.js.

Keep in mind that each approach has its pros and cons, and the choice ultimately depends on your specific needs, requirements, and the browser or environment you're targeting.

Latest run results:

Run details: (Test run date: 10 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser/OS: Firefox 121 on Windows

View result in a separate tab

Test name	Executions per second
ajax	3572.1 Ops/sec
fetch	6463.6 Ops/sec

Related benchmarks:

jquery.getJson vs fetch (version: 0)

Comparing performance of: ajax vs fetch

Created: 10 months ago by: Guest

Jump to the latest result

ajax

fetch

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):