Asynchronous JavaScript Requests

Online Course

Asynchronous JavaScript Requests

What is the course about?

Asynchronous JavaScript Requests
The course Asynchronous JavaScript Requests is an online class provided by Udacity. The skill level of the course is Intermediate. It may be possible to receive a verified certification or use the course to prepare for a degree.

This course covers everything a developer needs to know to asynchronously send and receive data in their web applications. You’ll dive into how asynchronous requests work by using the XHR object to create and send asynchronous requests for image and news article data. Then, you’ll see how you can perform async requests more easily using third-party libraries and APIs like jQuery’s Ajax and the Fetch API.

Course description
  • Asynchronous JavaScript Requests
  • 3 weeks
  • Fetch Data Asynchronously
  • Lesson 1: Ajax with XHR
  • Lesson 2: Ajax with jQuery
  • Lesson 3: Ajax with Fetch
  • Learn why you should use asynchronous data requests
  • Use the XHR (XMLHTTPRequest) object to send and receive data asynchronously
  • Compare using XHR with using a third-party library like jQuery’s Ajax
  • Send and receive data using jQuery’s Ajax methods
  • Learn how jQuery’s Ajax works under the hood
  • Use JavaScript promises to create a fetch request and handle the data asynchronously
  • Learn how to handle errors for failed requests
  • This course is ideal for students with intermediate level knowledge of JavaScript. You should have experience working with JavaScript’s Object Oriented (prototypal inheritance) capabilities and using native JavaScript Promises. To brush up on these skills, check out Object Oriented JavaScript and JavaScript Promises.
  • See the Technology Requirements for using Udacity.
  • Retrieving data asynchronously is now the norm with apps like Twitter, Facebook, and Google sending and retrieving mountains of data without having to stop and wait for processes to finish or to reload the page. Create smooth, modern web applications by using Ajax techniques to retrieve data asynchronously.

Prerequisites & Facts

Asynchronous JavaScript Requests

Course Topic

Computer Science, Programming

University, College, Institution


Course Skill Level


Course Language


Place of class

Online, self-paced (see curriculum for more information)



Degree & Cost

Asynchronous JavaScript Requests

To obtain a verified certificate from Udacity you have to finish this course or the latest version of it, if there is a new edition. The class may be free of charge, but there could be some cost to receive a verified certificate or to access the learning materials. The specifics of the course may have been changed, please consult the provider to get the latest quotes and news.
Asynchronous JavaScript Requests
provided by Udacity


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School: Udacity
Topic: Computer Science, Programming