Ajax in action by Dave Crane

By Dave Crane

Val's Blog "A drastically invaluable box consultant in particular written for builders down within the trenches...waiting for the killer solution..."

net clients are becoming bored with the conventional net event. They get annoyed wasting their scroll place; they get frustrated looking forward to refresh; they try to reorient themselves on each new web page. And the checklist is going on. With asynchronous JavaScript and XML, referred to as "Ajax," you could supply them a greater adventure. as soon as clients have skilled an Ajax interface, they hate to return. Ajax is new state of mind that could lead to a flowing and intuitive interplay with the consumer.

Ajax in Action is helping you enforce that thinking--it explains find out how to distribute the applying among the customer and the server (hint: use a "nested MVC" layout) whereas keeping the integrity of the process. you'll the best way to be sure your app is versatile and maintainable, and the way reliable, dependent layout may also help steer clear of difficulties like browser incompatibilities. alongside how it is helping you unlearn many elderly coding conduct. certainly, it opens your brain to the various benefits received via putting a lot of the processing within the browser. while you're an online developer who has previous adventure with net applied sciences, this booklet is for you.

buy of the print ebook comes with a suggestion of a loose PDF, ePub, and Kindle e-book from Manning. additionally to be had is all code from the publication.

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This isn’t the time or place for a detailed tutorial on JavaScript basics.

From a usability perspective, this freedom is important not so much because it allows us to exercise our imagination, but because it allows us to blend the user interaction and server-side requests more fully. 14 Interrupting the user’s workflow to process events. The user deals with two types of object: those relating to their business, and those relating to the computer system. Where the user is forced to switch between the two frequently, disorientation and lack of productivity may occur. The four defining principles of Ajax 23 To contact the server in a classic web application, we need to click a hyperlink or submit a form, and then wait.

If I follow an asynchronous input model, I can let the children notify me that they are starting to wake up. I can then continue with my other activities while the wakeup happens and remain blocked for a much shorter period of time. 14 CHAPTER 1 A new design for the Web Because of network latency, it is good practice to treat any RPC as potentially lengthy and handle it asynchronously. This problem, and the solution, are both well established. Network latency was present in the old client/server model, causing poorly designed clients to freeze up inexplicably as they tried to reach an overloaded server.

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