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ActionScript 3.0 Cookbook by Joey Lott, Darron Schall, Keith Peters

By Joey Lott, Darron Schall, Keith Peters

Good ahead of Ajax and Microsoft's home windows Presentation starting place hit the scene, Macromedia provided the 1st technique for construction websites with the responsiveness and performance of machine courses with its Flash-based "Rich web Applications". Now, new proprietor Adobe is taking Flash and its strong features past the net and making it a full-fledged improvement atmosphere. instead of concentrate on concept, the ActionScript 3.0 Cookbook concentrates at the sensible software of ActionScript, with greater than three hundred suggestions you should use to unravel a variety of universal coding dilemmas. you will find recipes that express you the way to:Detect the user's Flash participant model or their working systemBuild customized classesFormat dates and forex typesWork with stringsBuild consumer interface componentsWork with audio and videoMake distant process calls utilizing Flash Remoting and net servicesLoad, ship, and seek XML dataAnd a lot, even more ...Each code recipe provides the matter, resolution, and dialogue of ways you should use it in alternative routes or customize it on your personal wishes, and why it really works. you could quick find the recipe that almost all heavily suits your scenario and get the answer with out studying the entire publication to appreciate the underlying code. options growth from brief recipes for small difficulties to extra advanced scripts for thornier riddles, and the discussions supply a deeper research for resolving comparable matters sooner or later, in addition to attainable layout offerings and ramifications. you will even how you can hyperlink modular ActionScript items jointly to create rock-solid suggestions for Flex 2 and Flash applications.When you are not yes how ActionScript 3.0 works or find out how to method a particular programming obstacle, you could easily choose up the e-book, turn to the proper recipe(s), and speedy uncover the answer you are looking for.

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Case body One or more statements, usually ending in a break statement, to be performed if that case is TRue. The switch keyword is always followed by the test expression in parentheses. Then the switch statement body is enclosed in curly braces. There can be one or more case statements within the switch statement body. Each case (other than the default case) starts with the case keyword followed by the case expression and a colon. The default case (if one is included) starts with the default keyword followed by a colon.

ShowMessage ("Yay! "); } else if (animalName == "dove") { // This trace( ) statement executes only when animalName is not // "turtle", but is "dove". "); } What if the preceding example was written as two separate if statements (one to check if animalName is "turtle" and another to check if it is "dove")? The example would work as intended, but it would be less efficient. " If your two conditions are mutually exclusive, use an else if clause to check the second condition. If your two conditions are not mutually exclusive, and you want to perform both statement blocks when both conditions are met, use two separate if statements.

Flex applications are written in MXML (a form of XML), which describes the layout and relationship between components. They use ActionScript for their business logic. Although you can use the ActionScript knowledge you learn from here in Flex applications you write, this book concentrates on ActionScript projects exclusively. Now, if you are familiar with Flash 8 or earlier versions of the Flash IDE, you may be a bit baffled the first time you open up Flex Builder 2. There is no timeline, no library, no drawing tools or color pickers.

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