Tag Archives: AJAX

Learning Google Web Toolkit

Google Web Toolkit is an interesting project. It’s basically an AJAX toolkit but presents itself as a Java toolkit. The idea is that you still write Java code as you would with Java AWT, SWING, and the GWT converts it to JavaScript code for you.

But why don’t write JavaScript code directly? Well, you may know Java better than JavaScript. More importantly, Java is a typed language and easier to develop a large system than JavaScript.

Using GWT for Java developers is mostly

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Learning JavaScript + AJAX

It’s the second day of the four day training. A lot of things were covered:

  • Modern Web UI including progressive enhancement, accessibility, and design.
  • Applying Spring JS, an abstraction around other AJAX toolkit. The coverage includes AJAX events, client side validation, and rich widgets.
  • Working directly with Dojo Toolkit, including DOM scripting and Dojo widgets (Dijit).

The progressive enhancement is a great concept. The basic idea is to have your web pages start with plain HTML and then “decorates” them with richer L&F and more interaction on the fly. The key benefit is better compatibilities with different browsers which all support HTML but not necessarily JavaScript. When JavaScript is supported by the browser, the pages are enhanced by the embedded JavaScript; when not, the pages just render well as normal HTML.

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