The first module provides a comprehensive introduction to AJAX, including its history, benefits, and how it transformed web development. You'll learn about asynchronous data exchange between the client and server and the basics of HTTP requests and responses without needing to reload the page.

The second module introduces you to JavaScript and jQuery's role in web development. It covers syntax, variables, AJAX request handling, and best coding practices. You'll also get hands-on experience with exercises on writing AJAX requests using jQuery.

The third module delves into different response formats used in web development, such as JSON and XML. You'll understand their purpose, advantages, and disadvantages, and how to parse them in your applications. The module also covers advanced techniques for optimizing AJAX performance.

You will get a chance to work on various hands-on exercises to reinforce your learning, write Ajax requests using jQuery, parse JSON, and XML data, and build an Ajax-powered web application.

The course takes approximately 13 hours to complete. This estimate includes time for lectures, hands-on exercises, and projects, but the actual time may vary depending on individual pace and understanding.

Absolutely, the course is designed for self-paced learning. This allows you to progress through the material at a pace that suits your individual needs and schedule.

Access to lectures and assignments depends on your type of enrollment. If you take a course in audit mode, you will be able to see most course materials for free. To access graded assignments and to earn a Certificate, you will need to purchase the Certificate experience, during or after your audit. If you don't see the audit option:

• The course may not offer an audit option. You can try a Free Trial instead, or apply for Financial Aid.

• The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.

When you purchase a Certificate you get access to all course materials, including graded assignments. Upon completing the course, your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile. If you only want to read and view the course content, you can audit the course for free.

You will be eligible for a full refund until two weeks after your payment date, or (for courses that have just launched) until two weeks after the first session of the course begins, whichever is later. You cannot receive a refund once you’ve earned a Course Certificate, even if you complete the course within the two-week refund period. See our full refund policy.