Front-End Programming Exam  >  Front-End Programming Videos  >  AJAX and jQuery: Complete Series for Beginners  >  jQuery and AJAX Tutorials 35 | AJAX Highlighting Active Categories

jQuery and AJAX Tutorials 35 | AJAX Highlighting Active Categories Video Lecture | AJAX and jQuery: Complete Series for Beginners - Front-End Programming

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FAQs on jQuery and AJAX Tutorials 35 - AJAX Highlighting Active Categories Video Lecture - AJAX and jQuery: Complete Series for Beginners - Front-End Programming

1. What is AJAX in jQuery?
Ans. AJAX (Asynchronous JavaScript and XML) is a technique used in web development to send and retrieve data from a server asynchronously without interfering with the current page. In jQuery, AJAX is implemented using the $.ajax() method, which allows developers to make HTTP requests and handle the response data easily.
2. How can I highlight active categories using AJAX in front-end programming?
Ans. To highlight active categories using AJAX in front-end programming, you can follow these steps: 1. Get the category data from the server using AJAX. 2. When a category is selected or clicked, update the active category in the server. 3. Use the response from the server to update the front-end and highlight the active category.
3. What is front-end programming?
Ans. Front-end programming refers to the development of user interfaces and experiences that users interact with directly. It involves writing code using HTML, CSS, and JavaScript to create the visual and functional aspects of a website or web application that users see and interact with in their web browsers.
4. Can I use AJAX without jQuery?
Ans. Yes, you can use AJAX without jQuery. jQuery is a popular JavaScript library that provides a simplified way to work with AJAX, but it is not mandatory. You can use native JavaScript methods and APIs, such as the XMLHttpRequest object, to implement AJAX functionality without relying on jQuery.
5. How can I handle errors in AJAX requests using jQuery?
Ans. In jQuery, you can handle errors in AJAX requests by using the error callback function in the $.ajax() method. This function is executed if the request encounters an error, such as a network issue or server error. Inside the error callback function, you can perform error handling tasks, such as displaying an error message to the user or logging the error for troubleshooting purposes.
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