Actionscript 3 :: Possible To Use "get" And "set" On Anonymous Functions?
Nov 10, 2010I've tried it, but perhaps the syntax is wrong:
course.totalScore = function get():int
{
...
[code].....
Similar Posts:
ActionScript 3 :: Using Anonymous Functions As Event Handlers?
Dec 12, 2010I came to AS3 from JS world, and I should confess that anonymous functions are my weakness. I tend to use them everywhere. Now, coming to AS3 I've heard and read in lots of places, that AS and Flash are enormously bad at handling garbage collection, that one should empty, dispose and remove all event handlers and objects manually to avoid weird and unexplainable memory leaks and crashes. Not sure what part of this is true, but I would like to follow best practices right from the beginning. How bad is idea of using anonymous functions as event handlers? Consider for example a code like this:
addEventListener(Event.ENTER_FRAME, function() : void {
controls.elapsed = stream.time;
});
Ccontorls.elapsed is the setter, which apart from setting current play time for video player, updates the whole UI, and stream is NetStream object, which streams the actual video. There are lot's of other places where anonymous function may make code cleaner and more intuitive. Check the following code for simple fade-in effect for the control bar:
public function showControls() : void {
var self:Controls = this;
if (!visible) {
visible = true;
fadeTimer = new Timer(30, 10);
[Code] .....
I totally like how it looks and fits into the code, but I'm concerned about leaks. While Event.ENTER_FRAME handler probably would never become harmful in this form, what about timer listeners. Should I remove those listeners manually, or they will be removed automatically, as soon as I set fadeTimer = null ? Is it possible to remove listeners with anonymous functions properly at all?
ActionScript 2.0 :: Execute Anonymous Functions Directly?
May 25, 2007Why can't I execute an anonymous function directly, like:[code]The trace statement should output 'hello', but it just outputs 'undefined'. This is supposed to work in JavaScript (according to Mr Douglas Crockford). I thought Actionscript was compatible with JavaScript in this regard...
View 5 RepliesActionscript 3 :: Creating Anonymous Functions In Loop With Not The Same Arguments
Dec 25, 2010I want to make in loop set of buttons, and add to them some events, but anonymous functions is the same. I write example code:
for(var i:int=0;i<5;i++)
{
var button:SimpleButton = new SimpleButton(...);
...
[Code]....
And I want to trace 0,1,2,3.. from click buttons instead of 4,4,4,4 ..
Actionscript 3 :: What Is 'this' In Anonymous Event Handlers
Jul 3, 2010I noticed that in anonymous event handler this is referenced to global, not my class. I know that I can use outer referenced variables (because it creates closures), but how to get right this context?
Simple example:
_movieClipClassVariable = new MyCustomSpriteSubclass();
_movieClipClassVariable.addEventListener(MouseEvent.CLICK, function(event:Event):void {
trace(this); //gives 'global'
});
What about memory usage and garbage collection objects with anonymous handlers? Is declaring handlers as class method better?
ActionScript 3.0 :: RemoveEventListener() For An Anonymous Function?
Jan 31, 2008I have an event listener with an anonymous function literal, rather than a function reference. What I am trying to figure out is how to remove that event listener.Obviously, I need a reference to the anonymous function, so the two functions are ===. But, something is going wrong... it just doesn't work, ad this situation doesn't generate any feedback to tell me what might be wrong.There is some good info here, but not a clear explanation.
Code:
private static var _myFunc:Function;
public static function addCreditsToolTip(clip:DisplayObject):void
[code].....
AS3 :: Flex / Pass Parameter In Anonymous Function?
Aug 4, 2010In as3, I am adding event listener and then attaching the anonymous function to it:[code]Now this whole piece of code is looped n times. Now, I have n myBoxes and whenever I roll my mouse over the box, it should alert the name. But, what I see is that the last value of count is used by each box. How can I pass parameter or value to the anonymous function? ( as roll over , I believe, expects only one variable)
View 2 RepliesActionScript 2.0 :: Anonymous Function Return Values?
Aug 23, 2007little bit what Im trying to do: I have 2 SWF, one.swf and two.swf 1 LocalConnection to send 1 variable from one.swf to two.swf
one.swf code:
var param:Number = new Number(5);
var sending_lc:LocalConnection = new LocalConnection();
sending_lc.send("_Connection1", "myMethod", param);
[code]...
I need to be able to use param value out of the function, because a I need to perform a switch with this value, since the function wich receives de param value is an anonymous function I dont know how to do to get the value from outside the function because a dont have a reference name to the function so, the normal way to return a value is not going to do the job.
IDE :: Importing A Mp3 File - Nested Anonymous Function?
Apr 20, 2009I am trying to play an MP3 File in Flash Lite 2.1 (I'm using Flash 8 to develop it). The filename of the MP3 file is imported from an XML file.Here is a copy and paste from the help file on how to do this:
// create a new Sound object
var my_sound:Sound = new Sound();
// If the sound loads, play it; if not, trace failure loading.
my_sound.onLoad = function(success:Boolean) {
[code]....
When I test this code on its own, it does work fine for me. However, I want the above to be executed inside a function that does a number of other things...
Here is a sample of what I'm trying to get working.
function myMusic() {
// create a new Sound object
var my_sound:Sound = new Sound();
// If the sound loads, play it; if not, trace failure loading.
[code]....
I think it's got to do with the fact that once I put it inside a function you are nesting functions (there is a function call from the onLoad event).
I tried changed the line:
my_sound.onLoad=function(success: Boolean) {
to
my_sound.onLoad=myFunctionName(parameters go here)
and then I created a funciton called myFunctionName but I wasn't sure how to send the sound object or what parameters the function should have or how to get the .start() method to work inside the new function.
Actionscript 3 :: Flash - Remove A Listener That Has An Anonymous Function?
Jan 6, 2010up.addEventListener(MouseEvent.CLICK,
function clickFunc(event:MouseEvent):void
{
revealSpinner(event,51.42,1,spinner);
[Code].....
The above code adds a listener to a couple of MC's. Originally the methods were anonymous but I have named them clickFunc() in order to try an reference them in my remove listener.
Here is my remove listener code. Both of these snippets are in separate functions. The add listener method is called before the remove method.
up.removeEventListener(MouseEvent.CLICK, clickFunc );
down.removeEventListener(MouseEvent.CLICK, clickFunc);
As soon as I publish the movie I get this error:
1120: Access of undefined property clickFunc.
Actionscript 3 :: Anonymous Objects Creation When Calling A Function?
Feb 14, 2010If I want to send an object to a function with one child called foo equals "bar", i need to do the following:[code]is there a way to declare the object in the function itself ? something like that:[code]
View 1 RepliesActionscript :: Return Anonymous Getter Function In Flex?
Aug 26, 2010Getter functions allow obj.meth syntax instead of obj.meth(), I'd like to create an anonymous one of these to return from another function. function get ():Object { } is invalid syntax. I don't suppose Flex offers an easy way to get this functionality, if it's even possible?
View 2 RepliesActionscript 3 :: HaXe, Differentiate Anonymous Function At Runtime?
Mar 8, 2011I'm trying to differentiate anonymous functions like:
function() { trace("WOO"); }
from the other ones ('named'?) like
var _FUNC:Dynamic = function() { trace("WOO"); }
The reason I want to do that is because I can't compare between two anonymous functions, because they are two different ones.
var _TEST:Dynamic = function(a:Dynamic):String {
var _TESTA:Dynamic = function() { trace("WOO"); };
var _TESTB:Dynamic = _FUNC;
return (a == _TESTA) + ", " + (a == _TESTB);
}
If I run _TEST(_FUNC);, I'll get back "false, true". Even though they are the same function, they are NOT the same object.Is there a way to compare those such that functions that they are the same if they perform the same task? Is there a way to serialize functions? So that maybe I can compare the serialized representations and see if they share the same 'code'.
Actionscript 3 :: Anonymous Class Passed As Variable To Function?
Jun 20, 2011In c++ if I have a function that takes a class I have defined elsewhere as a parameter like so:void moveto(CPoint2D point) { ... }I can invoke it and pass along data to it like this:moveto(CPoint2D(0,0));basically creating the object and invoking it's constructor to be passed to the functionIs there an equivalent to this in AS3?if I have a function like this:function initialize(min:Point, max:Point): void { ... }how do I do something along the lines of :initialize(Point(0,0), Point(10,10))This throws an error im assuming because it thinks I want to cast something to a point and the notation I found earlier to do something similar only seemed to work if using the basic Object class.
View 1 RepliesActionScript 3.0 :: Child Class Object Instance - Anonymous Call
Sep 15, 2010If an object, or say... a document class, creates an instance of a class (and stores it as a variable), and it doesn't pass any arguments to the constructor of the class, can that class object, by simply having a function of it called by the parent, tell who sent it that command/request? In other words, can a class object know who called it (such as it's parent) via a (seemingly) anonymous call?
View 1 RepliesActionscript 3 :: Passing Local Variable To Loader Anonymous Handler Function
Oct 22, 2011Why isn't this working as I am thinking it would:
var i:int=-1;
for each(obj in myData)
{
i++;
[Code]....
If I add i to an array (like myArr.push(i)) it will have 3 elements, 0, 1 and 2.
Flex :: Arbitrary Number Of Anonymous Loader Handers With Individual Data?
May 12, 2009I have an arbitrary number of files that I need to load in an AIR app.I want to iterate through an array of File object and create and launch Loaders for each one's File.url.When they are done (event COMPLETED or IOErrorEvent.IO_ERROR), I want to stuff their data somewhere. If they fail, I want to make an exception report. I cannot find any way to reference the File object from the event listener (certainly not the IO_ERROR)The best way would be to create individual event handlers for each Launcher that had the File information "hard-coded" into it. At the very least, I could use the function itself as an index to a Dictionary:
foo(fileToLoad : File) : void
{
var theCompletedHandler : Function =
{
[code]....
Can I use event.currentTaget and use the Loader instance as an index? Will that have any weird dependencies ?
Actionscript 3 :: Symbol Binding - Each Copy Of The Anonymous Function Gets Bound To A Single Reference To F?
Apr 20, 2011I'm new to AS3, and can't figure out why this loop isn't behaving the way it "should."
[Code]...
How can I give each anonymous function a reference to each object represented by f, rather than a simple reference to f each time? Specifically, why is it that each copy of the anonymous function gets bound to a single reference to f? How (I should say why) exactly does AS3 differ from JavaScript in this regard?
ActionScript 3 :: Anonymous Function As Click Handler Is Called Multiple Times Per Click
Aug 16, 2010I have a button labeled 'blueButton' and I'd like to use an anonymous function to handle the click, like so:
blueButton.addEventListener(MouseEvent.CLICK, function(event:MouseEvent):void {
trace( "-----click detected-----" );
// now do other stuff
});
Problem is, the click handler is called multiple times per click. The number of times called seems to be random (sometimes 2, sometimes 4, sometimes 3 etc). could I be missing something in my code, or maybe I set up the button wrong?
also I noticed that it seems to always get called once on the first click. After the first click is when it starts getting called additional times, maybe that has something to do with it?
Flash :: Call Anonymous Function From ExternalInterface.call() Method?
Nov 4, 2010I need to get a javascript var in my Flash application. I like to be able to just set a variable in the javascript (client constraints) rather than define a function.
Can this be done? I am trying to use the ExternalInterface.call()
AS:
ExternalInterface.call("function(){return window.someVar}", null);
JS:
var someVar = "Test";
This does not work and I suspect it is because the ExternalInterface.call() does not like the anonymous function.
Actionscript 3 :: Calling Functions In Functions And Avoiding The Player To Crash / Hang?
Oct 6, 2011I have a series of calculations i'm doing over a bunch of objects stored in a array. Each function is pretty CPU demanding but if you only run one function, it just works fine.
[Code]...
ActionScript 3.0 :: Import Vs Include - Basic Functions To Be In BasicFunctions.as And The Make A Library For More Specific Functions
Jun 6, 2010I've got a project thats getting a bit big, so Im taking the actionscript out into separate as files. I want all the basic functions to be in BasicFunctions.as and the make a library for more specific functions. I find that a lot of people use the import statement but I cant get that to work with a simple Hello World trace, yet the include statement works fine (see attached). I understand that import/include work differently, but which is the better method? If import, then is that heavier to work with. Any rate, what's the best way to organise code when it gets to the 1000+ lines?
[Code]....
ActionScript 3.0 :: Mimicing The Until Functions - Load Of Global Functions In One File?
Nov 4, 2009I'm trying to find a way to have global functions in my as project, similar to how flash does with stuff like the util functions (describeType()...), where you can just call the function wherever you need it. For example:
[Code]...
So when I call Test(), it prints out "hello world" fine. My problem comes in that I can't change the name of the Test function, and I can't add any other functions without compiler errors. Is it possible to have a load of global functions in one file, or do I have to split them up into separate files like in the example? Also, I know that I can make a Global class and call static functions like Code: Global.doSomething() but I'd like to know if there's a way to do it as flash does it (describeType(), getDefinitionByName(), etc), or rather, how does flash do it?
ActionScript 2.0 :: Call Other Functions From Generic Mouse Event Functions?
Nov 25, 2010Is it not possible to call other functions from generic mouse event functions?
Code:
_root.myButton.onPress = function(){
hide();
[code]......
ActionScript 2.0 :: Functions And Sub-functions - Button Doesn't Work OnRelease?
Jun 17, 2004I have one function that puts text in a text field and makes a button goto a url onRelease.The code is like this:
Code:
item.onRelease = function() {
myButton.onRelease = function() {
getURL("http://google.com", "_blank");
}
talk = this.txt;
}
the only problem is that the button doesn't work onRelease. i think that it is because there are too many functions there, but at the same time,
ActionScript 2.0 :: Multi-functions -values Of (12) And (21,39) Are Lost At The Geo And Geo1 Functions ?
Dec 2, 2004in this example why the values of (12) and (21,39) are lost at the geo and geo1 functions
[code]...
Flash - Add Functions To Playerglobal.swc Or Allow Compiler To Pass Own Functions
Oct 25, 2011Im adding lot of simple functions to prototypes of top level objects ( Object , Array , String ...) and have 2 questions :
Is possible to add functions to top level's classes in compile-time ?
If not , is there a way to allow this functions to compile ? I dont like to turn off strict mode
ex:
string.removeWhiteSpace();
string.sliceStr("." , "end");
textField.scrollBottom();
this return compile-time error , cause there is no such function , i have to write it in braces :
string["removeWhiteSpace"]();
string["sliceStr"]("." , "end");
textField["scrollBottom"]();
and i like to aviod it )
ActionScript 2.0 :: Calling Functions Within Mouse Event Functions?
Mar 16, 2003Is it not possible to call other functions from generic mouse event functions? Surely it is !!??ie....
Code:
_root.myButton.onPress = function(){
hide();
[code]........
ActionScript 3.0 :: Functions Embedded Inside Other Functions?
Jan 14, 2011Functions embedded inside other functions? In all my years of ActionScript programming, I've never seen this (this is part of legacy code written by someone else which I am adapting):
[Code]....
Actionscript 3 :: Prototype Functions Off Custom Functions?
Mar 19, 2010Its a complicated senario for me. I have a sound management singleton with an asset like dictionary storing all referances to my urls and assets and the guff inside it-
I have a function called addItem(id:String, url:String):Object
I would love to do something similar as soundManager.addItem(id:String, url:String).play() or soundManager.addItem(id:String, url:String).stop() of which it'll both add my item to my dictionary, and begin playing the sound
[Code]...