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ExtJS- Not just another JavaScript library

October 25, 2010

Ext is not just another JavaScript library—in fact, Ext can work alongside other JavaScript libraries by using adapters.We’ll see how to work with adapters in my later Posts.

Typically, we would use Ext in a web site that requires a high level of user
interaction—something more complex than your typical web site. A web site that requires processes and a work flow would be a perfect example.

Ext makes web application development simple by:

  1. Providing easy-to-use cross-browser compatible widgets such as windows,grids, and forms. The widgets are already fine-tuned to handle the intricacies of each web browser on the market, without us needing to change a thing.
  2. Interacting with the user and browser via the EventManager, responding to the users keystrokes, mouse clicks, and monitoring events in a browser such as a window resize, or font size changes.
  3. Communicating with the server in the background without the need to
    refresh the page. This allows you to request or post data to or from your
    web server using AJAX and process the feedback in real time. [The term AJAX (Asynchronous JavaScript and XML) is an overly-complicated
    acronym for saying that processes can take place in the background while the user is performing other tasks. A user could be filling out a form while a grid of data is loading—both can happen at the same time, with no waiting around for the page to reload].
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