What is jQuery
jQuery is nothing but JavaScript library that comes with rich functionalities. It's small and faster than many JavaScript code written by average web developer. By using jQuery we can write less code and do more things, its makes web developer's task very easy. In simple word jQuery is a collection of several useful methods, which can be used to accomplish many common tasks in JavaScript. Couple of lines of jQuery code can do thing which need too many JavaScript lines to accomplish. True power of jQuery comes from it's CSS like selector, which allows it to select any element from DOM and modify, update or manipulate it. You can use jQuery to do cool animations like fade in or fade out. You can also change CSS class of a component dynamically e.g. making a component active or inactive. I have used this technique to implement tabbed UI in HTML. I can vouch for jQuery that once you start using it, you will never go back to plain old JavaScript, it's clear, concise and powerful. You will even regret why you are not using jQuery before.