Yes. You can start learning AJAX on Coursera for free in two ways:

1. Preview the first module of many AJAX courses at no cost. This includes video lessons, readings, graded assignments, and Coursera Coach (where available).
2. Start a 7-day free trial for Specializations or Coursera Plus. This gives you full access to all course content across eligible programs within the timeframe of your trial.

If you want to keep learning, earn a certificate in AJAX, or unlock full course access after the preview or trial, you can upgrade or apply for financial aid.‎

To learn AJAX, start by enrolling in an introductory course that covers the basics of AJAX and its applications in web development. Practice by building small projects that incorporate AJAX functionality, such as creating a dynamic form or a live search feature. Utilize online resources, tutorials, and documentation to reinforce your understanding. Engaging with community forums can also provide support and insights as you learn.‎

Typical topics covered in AJAX courses include the fundamentals of AJAX, how to make asynchronous requests, handling responses, working with JSON, and integrating AJAX with various web technologies. Advanced courses may also explore error handling, security considerations, and best practices for optimizing AJAX performance in web applications.‎

For training and upskilling employees in AJAX, consider courses like Interactive Web Content Using AJAX and JSON in JavaScript and Advanced AJAX Techniques and Final Projects. These courses provide practical skills and projects that can help employees apply AJAX concepts effectively in their work.‎