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.
Why Take This Course? 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.
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. Then, you'll see how you can perform async requests more easily using the third-party library, jQuery, with its `$.ajax()` method. And you'll learn the cutting edge way to make asynchronous requests using the new Fetch API.
## Lesson 1: Ajax with XHR
* Learn why you should use asynchronous data requests
* Use the XHR (XMLHTTPRequest) object to send and receive data asynchronously
## Lesson 2: Ajax with jQuery
* 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
## Lesson 3: Ajax with Fetch
* Learn how to handle errors for failed requests
MOOCs stand for Massive Open Online Courses. These arefree online courses from universities around the world (eg. StanfordHarvardMIT) offered to anyone with an internet connection.
How do I register?
To register for a course, click on "Go to Class" button on the course page. This will take you to the providers website where you can register for the course.
How do these MOOCs or free online courses work?
MOOCs are designed for an online audience, teaching primarily through short (5-20 min.) pre recorded video lectures, that you watch on weekly schedule when convenient for you. They also have student discussion forums, homework/assignments, and online quizzes or exams.