jQuery Tutorial

1. jQuery Introduction

What jQuery is, why it existed, whether it is still relevant today, and how to install it.

2. Selectors & DOM Manipulation

CSS-style $() selectors, reading and writing content and attributes, and traversing the DOM.

3. Events

Binding events with .on(), event delegation for dynamic content, and common event types.

4. AJAX with jQuery

$.ajax(), $.get() and $.post(), handling JSON responses, and how they compare to native fetch().

5. Plugins & Extending jQuery

Writing a jQuery plugin with $.fn, chainability, handling multiple elements, and a complete character-counter example.

6. Migrating Away from jQuery

A side-by-side mapping of common jQuery patterns to their vanilla JavaScript and fetch() equivalents.

7. jQuery Interview Questions

Commonly asked jQuery interview questions with clear, practical answers.