ActionScript 2.0 :: Flash And Its Non-strict OOP Scope?
Sep 26, 2005
I was writing some stuff today and i realized that variables inside a class are not constrained to the constructor or method scope. In my opinion this is utter lazynes. Scopes need to be fully enforced to force programmers to comply with correct OOP styles and organization.
to force yourslef to comply with the standards, when reffering to the consturctor always use the 'this' prefix and use 'var' for all temporary variables that should be inside the method scope.
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Jul 1, 2004
I add this actionscript code on the first frame. Variables are loaded but. The question is below the code.
[Code]...
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Apr 2, 2010
I have a Debug class I've written, and I'd like to include a static trace() method in there, unfortunately I have no idea how to then access global / top level trace as effectively I've blocked it with the local static scope.[code]
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Aug 10, 2010
How do I turn on the strict mode in Flash Builder 4? --update I found something about "Preferences -> Actionscript 3 Settings", but there is no such option in Flash Builder preferences.
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May 26, 2010
I am following a code example in a book and have the final fla and as files, so I know the project works when fully coded.In the book, it tells me I can test the movie to make sure that it is working so far. When I do that, I get the error 1120: Access of undefined property.
The "property" is a component instance. If I take the example completed code and remove everything up to the point I am at, I receive the same errors, so I know it's not a spelling/syntax mistake.I have a feeling it is the Compiler in Strict Mode. But, when I change it to Standard Mode, then I get error 5001: The name of package 'com.foundastionAS3.ch12' does not reflect the location of this file. etc.
note:: attached is a file of the compiler when it gives me multiple 1120s.
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Feb 4, 2012
Is there any way to set actionscript compiler in strict mode? I had to check the size of an array in a function.[code]I've lost a lot of time (lenght is an undefined property and if condition was not verified, so function went on... so bad!). Is there any way to force compiler to stop and warn me in this or similar cases?
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Jan 7, 2010
I am learning ActionScript 3.0. Coming from Java world I can easily relate to strict compilation mode. I think having type safety checks at compilation time makes perfect sense. This makes me wonder, why the compiler allows a standard mode were all the type safety checks are deferred to run time? Is compatibility with older ActionScript specification the sole reason for having standard mode?
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Dec 18, 2011
i tried searching for an answer but no luck..i know i can enforce type checking by writing:
ActionScript Code:
var iCount:Number = 10;
but for existing objects, while adding properties to them, i cannot specify datatypes:
[code].....
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Jan 23, 2011
I'm struggling with the transition to AS3, specifically not being able to use parent like I used to. Aside from it making me a better coder, are there any good reasons to use strict mode? If I dont use it, are there any 'side effects' to my swf I should be aware of? Any input on parent and strict mode.
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Jan 20, 2010
i want to use a variable to load a mc [code]when i use "string", it works locally but not uploaded on the server
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Nov 8, 2010
Below does not work
PHP Code:
var c:Class = Sprite;
var v:Vector.<c> = new Vector.<c>();
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Feb 8, 2010
I need to create a custom Object that basically stores some custom parameters (properties?), which I have successfully done, and the code below works fine.
PHP Code:
myObject = new Object();
myObject.nameLabel = "New Releases";
myObject.artOrientation = "portrait";
myObject.artAmount = 5;
I find the new compiler and debugger capabilities very useful, since I'm not the most detail-oriented, so I (usually) like that Flash forces me to strict-type my variables and such. Anyway, I was wondering if it's a "best practice" to strict data type a custom objects' properties, and if so, how to do it in the logic above? I kept getting syntax errors when I just tried it initially.
I know if I created a custom Class .AS file, I would be forced to data type the properties... but I'd rather just do it "in-line" in my main .FLA file. Also, I know I can just pass typed VARIABLES to the properties... but I'd rather have the properties strict-typed themselves... so if I try to pass a variable as the wrong type, then I would still get an error.
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Mar 17, 2010
I'm looking for will all happen in about two or three seconds. I'm re-building my own website using AS3 package classes. When the API loads I want everything to appear in sequence from invisible to visible. First the logo, a few lines drawing themselves, then all the navigation buttons at the top appearing in a quick-fire horizontal row, then the content rolls in, etc. I want strict, accurate control over about two or three seconds, of how and when everything on stage goes from invisible to visible in a quick-fire sequence. I know it can all be done with several timers for each alpha going from 0 to 1. But can all the variables going from alpha 0 to 1 be bundled into an Array? And the Array fired by ONLY ONE Timer using a For Loop? Or am I just barking up the wrong tree? Should I just use a bunch of Timers? I want to avoid a Tween because I want very accurate control of the quick-fire invisible to visible effect. And I want it to be easy to change later. Can this effect be done by ONLY ONE Timer rather than several Timers? And if it can, how do I make the timer fire all variables in strict sequence? Do I use an Array with a For Loop? Or something else? I've been looking for a couple of days but still haven't found anything close.
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Sep 16, 2011
I've got years of experience with AS3 but am very new to MXML. I've downloaded Flash Builder 4.5 in the hope of building some mobile applications and am stumbling over the integration of Actionscript with MXML. I need to dynamically build an elaborate game interface by drawing shapes. For some reason, Flash Builder tells me I have an error in the Actionscript here:
[Code]...
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Sep 14, 2010
What is the scope of a class created in Flash? If you create a class on the main timeline, can you use it anywhere in your project? If you use your class in a a movieclip, can you use that class outside of the movie clip?
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Nov 20, 2010
I got this function with an eventlistener like this:
Code:
public function onScroll(denne:MovieClip)
{
Main.instance.addEventListener(MouseEvent.MOUSE_WHEEL, onMouseWheelEvent);
[Code]....
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Dec 11, 2009
I'm working on writing a tweening class in as2 that has a callback variable and I can't seem to find a good way to get the scope without specifically passing in a scope variable as well. This tweening class needs to work in classes as well as on the timeline. Here's what my codes looks like right now.params.scope[ params.onComplete ]( params.onCompleteParams );params is an object passed into the class. This works but I don't want to have params.scope in there.
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Jan 29, 2010
know if the index effect the scope of an object because I am creating a game and for some reason, I get an error like below
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at com.objects::Torret/updateObject()
at com.objects::EngineApi/loop()
[Code].....
updateObject is the loop for all my objects. I have one centralized loop and in that loop it calls on an array of objects that have been placed on the stage. all of them containing the method updateObject. to update the status of the object. addGameChild() is a encapsulated addChild() , that not only adds the object to the stage, but places it in a array so it's updateObject() method can be called on. it is also used to make it easier for garbage collection.
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May 8, 2011
Calling jQuery Function from Flash
if we have a jQuery plugin of the following style[code]...
Could anyone point me in the right direction for how this call can be made directly or clarify if it's just not a supported operation?
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Oct 16, 2010
I'm having trouble getting to the bottom of this error. The debugger says my class is undefined. Wonder if you might have some ideas, I cannot manipulate the properties in side the Ball class I have created in my main document class.May be a scope error of some kind or a problem with my Ball class declaration.
Code:
/* Main Document Class*/
package {
[code].....
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Aug 31, 2009
Is there a way to perform a strict "is"?[code]...
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Nov 5, 2006
i am teaching myself how to use localToGlobal(), and i seem to be running into a scoping snag, at least i THINK it is a scoping snag. So when i use Code:
[Code].....
i get the desired effect, yippee. That is to say, the output says 299, which is what the global coordinate of the movie is. However when i try use the same code in the main time line like this
[Code].....
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Feb 12, 2007
I seem to be having difficulty in using the contents of a variable whan i receive the data from the database the script places the contents in a variable called myText1This I need to access outside the function.This is part of the script below.
mypath = "http://192.168.0.100/fedpest/pestReports/"
mypath1 =mypath + "exterior.php";
var sendData = new LoadVars();
[code].....
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Nov 16, 2009
I have a function, and inside of it is a LoadVars object to load a variable. The problem is that I need the outer function to return the results of the LoadVars' return.
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Jul 15, 2009
I have made a script, and now has come the point when I need to use removechild. Whenever I try this I get an error. After looking at the problem, I think I need to learn more about scope and packages. I think if I put everything in the correct scope, I will be able to use the removechild command. I tried to make all my vars public, so that removechild would work, however I got an error that anything public needs to be in a package. I tried to add the package part to my script, but got the error that packages cant be nested. I tried some other things and still no luck, just more errors.
So, if anyone could point me to a tutorial, or recommend a book or something, that will help teach me about scope and packages, Or if you are feeling patient and generous, and you think you could explain this problem to a 5 year old, please explain it to me the way you would to said 5 year old. If you maybe think you can help me out on the script, it can be found here: [URL]
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Dec 3, 2009
A question about the variable within the for loop it is always stuck on False -- even if the first condition gets achieved.I read that the for loop variable is treated as if it is completely seperate varibale from the one in the main even if they have the same name
PHP Code:
canwalk = true;function isheblocked [code]..........
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Feb 13, 2010
I'v attached a listener to a movieclip on stage but I can access any "global" varaiables which are out side the listeners function.I lose the scope or something what can i do about it? here is some code.
PHP Code
player.controlbar.muteButton.addEventListener(MouseEvent.CLICK,mute0,false,0,true);
public function mute0(e:MouseEvent):void {
[code].......
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Mar 12, 2010
I have searched the Adobe documentation for some insight, but apparently I am not looking in the right place. Here is a simplified code example:
[Code]...
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Apr 5, 2010
I have 2 methods in a actionscript class.[code]I get duplicate variable warning. Is the local variable scope not limited to the method. Can't I declare same name variable in multiple methods?
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Dec 26, 2009
I seem to have an array scope issue. I have a global variable; var itemConnect:Array = new Array(); Which is initialized at the start. I then have a function to populate it as a 2-d array:
[code]...
It seems to have scope access to just one of each of the [i] nodes, so [1][2], [1][3], [1][4] are missing - only the last [j] element appears. What is the correct way of doing this? I also don't know the exact size of the array at the start which may be an issue.
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