Making asynchronous requests to the server side.We commonly use JavaScript code for tasks such as: Web 2.0 has ushered in a very different programming model, where much of the application flow and business logic is developed using JavaScript on the client side. Accordingly, most Web 1.0 applications used some kind of Model-View-Controller (MVC) framework - such as Struts, JavaServer Faces (JSF), or Spring MVC - on the server side, but few needed a JavaScript framework for client-side programming. Web application developers typically used JavaScript only for input validation and to display error messages to users. In the Web 1.0 world, the common Java application architecture called for implementing business and application flow logic with Java EE on the server side. In this first half of his introduction to Dojo, Sunil Patil introduces the toolkit's basic features, helps you set up your development and debugging environment, and shows you how to put Dojo's mojo to work in your Ajax development projects. ![]() ![]() The open source Dojo toolkit distinguishes itself from other JavaScript libraries with capabilities that go far beyond simplifying DOM access. ReWeb 2.0 has brought with it the need to develop extensive JavaScript infrastructure code on the client side, something few Java developers saw themselves doing five years ago.
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