
jQuery is a fast, lightweight, and feature-rich JavaScript library. It simplifies tasks like HTML document traversal and manipulation, event handling, animations, and AJAX interactions across different web browsers. jQuery allows developers to write less code by providing a simple, easy-to-use API that abstracts complexities in JavaScript, making web development faster and more efficient. However, with the advancements in modern JavaScript and browser capabilities, native JavaScript functionalities have evolved, reducing the necessity for jQuery in some cases.