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fetch vs ajax callt
(version: 0)
fetch vs ajax call
Comparing performance of:
Ajax vs Fetch
Created:
4 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src="//cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.min.js"></script>
Script Preparation code:
function showResult(data) { console.log(data); } var newUrl = "https://www.googleapis.com/discovery/v1/apis";
Tests:
Ajax
var request = $.ajax({ type: "GET", url: newUrl, success: showResult, data: null });
Fetch
fetch(newUrl) .then( function(response) { response.json().then(function(data) { showResult(data); }); } ) .catch(function(err) { console.log('Fetch Error :-S', err); });
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Ajax
Fetch
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what is being tested, compared, and their pros and cons. **Benchmark Definition** The benchmark definition represents a microbenchmark that compares the performance of two approaches: Fetch API (a modern JavaScript API for making HTTP requests) and jQuery's AJAX functionality. The test aims to determine which approach is faster and more efficient. **Script Preparation Code** The script preparation code defines a function `showResult` that will be called when either the Fetch or AJAX request completes successfully. It simply logs the result to the console using `console.log`. **Html Preparation Code** The HTML preparation code includes a reference to jQuery, which is loaded from a CDN (Content Delivery Network). This library provides a simplified way of making AJAX requests. **Individual Test Cases** There are two test cases: 1. **Ajax**: This test case uses jQuery's AJAX functionality to make a GET request to the specified URL (`newUrl`). The `success` callback function, `showResult`, is called when the request completes successfully. 2. **Fetch**: This test case uses the Fetch API to make a GET request to the same URL. It uses a promise chain to execute multiple steps in sequence: parsing the response as JSON and then calling `showResult`. **Comparison** The benchmark compares the performance of these two approaches: * jQuery's AJAX functionality * The Fetch API **Pros and Cons** Here are some pros and cons of each approach: **jQuery's AJAX Functionality** Pros: * Well-established and widely supported library * Easy to use, especially for simple requests * Can handle various request types (e.g., POST, PUT) Cons: * Not as modern or efficient as the Fetch API * May incur additional overhead due to the need for a library **Fetch API** Pros: * Modern and efficient way of making HTTP requests * Built into JavaScript itself, eliminating the need for an extra library * Can be used with promises, async/await, and other modern features Cons: * Requires knowledge of promise chaining or async/await syntax * May not handle all edge cases as well as jQuery's AJAX functionality **Library: jQuery** jQuery is a popular JavaScript library that simplifies DOM manipulation and event handling. In this benchmark, it's used to make AJAX requests. While it provides a convenient way to make requests, its inclusion adds overhead due to the need for an extra library. **Special JS Feature/ Syntax: Promises/Promise Chaining** The Fetch API uses promise chaining to execute multiple steps in sequence. This allows for concise and expressive code. However, it may not be familiar to developers who are new to modern JavaScript features. **Other Alternatives** If you don't want to use jQuery or the Fetch API, other alternatives include: * Using the native `XMLHttpRequest` object * Utilizing a library like Axios (a more modern alternative to jQuery) * Implementing your own request handling logic using WebSockets or Server-Sent Events Keep in mind that these alternatives might add complexity and may not offer the same level of convenience as using a well-established library like jQuery.
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