open world. Jump to navigation Jump to search. Welcome to Introduction to ActionScript , a book on ActionScript that anyone, including you, can edit!. These functions will be discussed in this chapter as well as the second section of this book. Other built-in functions do not belong to a built-in class. They can be. The definition of private has changed since ActionScript , where it allowed access by subclasses. If you do not specify an access modifier explicitly, the.

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That is just to show that actionscriptt can be fit into any data type. Simply put the appropriate variable name or address and a dot before the usual function call.

Both authors can be reached directly through this website. A constructor function is the most important method of a class.

Introduction to ActionScript 2.0/Properties and Methods

That saves us from having to type in this. Instead, it can be generated like this: In this example, the worm symbol traces ‘First frame! Type in the following code:. Give it the instance name of ‘apple’. Properties and methods are the two components that constitute a class. Let’s try out our apple example again with this. This book is not for your PhD thesis. In computer science if a value is null or undefined, there isn’t anything in it.

The reason why new properties can be added to the instance is because MovieClip is a dynamic class.


Retrieved from ” https: In other languages Add links. Also note that a number can be used with the! Remember the syntax for initialisation that we learnt in the first chapter? Finally, it is found that undefined is equal, but not strictly equal, to null.

Our look is the result of reader comments, our own experimentation, and feedback from distribution channels. We will talk about dynamic classes in the third section. Note that in order for this to work, we have to ensure that objectName is a property of what we’re working on.

Next, someString is set to undefined. Note that if you have programming experience, this book will be quite easy for you. A property is a variable that belongs to a certain class.

Preface – Learning ActionScript , 2nd Edition [Book]

While it does include coverage of object-oriented programming techniques, for example, it does not address this material in great depth. In other languages Add links. From Wikibooks, open books for an open world. Although this book was written for a reader still finding his or her way with ActionScript 3. ActionScript provides a huge number of built-in functions.

If your previous language is JavaScript, you may even want to skip the some of the ‘bare basics’ parts. A global variable is a variable that can be accessed and changed anywhere you want. If you find any of these inclusions to be too much to digest, feel free to skip them and come back to them later.

We won’t learnt how to make our own constructor functions until the third chapter. We talked with a lot of students, user groups, and instructors and began to sketch out a book that would put what we learned into practice.


Supplemental materials are also available, including additional exercises, self quizzes, extended examples, ongoing learning suggestions, a list of additional resources, reader comments, errata, and more. This book is not here to teach you animation.

These class-based files may also be useful to readers who already have experience with object-oriented programming. In the Flash aftionscript reactions ranged from excitement to uncertainty to fear, as the ActionScript 3. So far, we’ve only been referencing the apple from the main timeline.

Before you start, make sure you can: Consider the following example:. Note A note gives additional information, such as resources or a more detailed explanation. As you can see, this is not always necessary.

Introduction to ActionScript /Properties and Methods – Wikibooks, open books for an open world

Start Free Trial No credit card required. Migration from ActionScript 2. Calling a method of another function is just as easy as accessing their variables. Rich would like to thank: I wish I could say this book is 22.0 whomever Kyle Baker is going out with now, but that was done long ago.