What Is jQuery?

jQuery is an extremely fast, lightweight JavaScript library that simplifies many aspects of client-side web development. You can use jQuery for almost any client-side functionality that you can think of—event handling, animations, drag-and-drop functionality, asynchronous web service calls, and much more. Furthermore, jQuery supports a robust plug-in model that enables developers to write their own extensions to implement whatever functionality they want. There are already hundreds of powerful jQuery plug-ins available.

jQuery is CSS3-compliant and works on almost all browsers—Internet Explorer 6.0+, FireFox 2+, Safari 3.0+, Opera 9.0, and Google Chrome. This means that you can write one set of code and not have to worry about ...

Get ASP.NET 4 Unleashed now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.