Actionscript 3 :: Using . Or [ ] To Access Object Properties - What's The Difference
Feb 1, 2012What is the difference between the code (i) and (ii) written below ?
[CODE]...
What is the difference between the code (i) and (ii) written below ?
[CODE]...
My FMS client is calling a function (simplified) which gets the offset time in milliseconds of an flv file.According to the docs for creationTime, it should return a Date object containing the time the file was created.I cannot access any properties of the date object in the server script.
Client.prototype.listFiles = function( folderName ) {
var testFile = new File('/streams/folder/fileName.flv');
trace("creationTime: " + testFile.creationTime);
[code].....
I made a movie clip that is linked to a class named "Fugel". In the "Fugel" class I want to access the object's properties (x, y, rotation, alpha...) that I created in the main FLA file. I'm trying to center it in the constructor, but I don't know how to. The "this" keyword doesn't seem to work.
Here is the code for the "Fugel" class:
Code:
package {
import flash.display.MovieClip;
public class Fugel extends MovieClip {
public function Fugel() {
[Code].....
Load external SWF file, an error: TypeError: Error #1009: Null object reference can not access the properties or methods.
View 0 Repliesi'm attempting to cast an object's property as an actual property of another object. here's my object variable: var propObj:Object = {prop:"width", width:50}; now i want to assign the property of a sprite using that object's properties. var sp:Sprite = new Sprite(); sp.(propObj.prop as Sprite.property) = propObj.width; now, i'm not even going to try that because i know the compiler will explode all up in my face. but you should be able to see what i'm trying to do. why i'm trying to do it is because i'm reading in an XML file with an undetermined list of usable properties for specific objects. so instead of writing something like a huge switch statement to evaluate whether the XML file has a value for that specific property, i'm trying to assign properties dynamically based on what's available in the XML file. if what i'm trying to do is possible, what's the best way to do it?
View 1 Repliesi refer to this tutorial [URL] what i found strange is that i can't use . to refer to movie clip instance in this tutorial, it only works if i use [] access for example: "_root.instancename" versus "_root[instancename]" only the second one works.... examine the short code i attached just cut and paste the code...play the movie..and see the difference,
View 6 RepliesI forgot to put it in the title so I'll just place it here; I am using AS 2.0. I know that there are other ways to accomplish the goal that am after, but I was wondering if anyone knows of a way to access the properties of an object's properties?
Here is the code that I thought of, even though it doesn't work
var a:Object = new Object();
a.bproperty = 0; //lowerlevel properties
a.cproperty = 1; // lowerlevel properties
[Code].....
This really just boils down to how I am organizing the code(I have ideas on what do next, and i am 99% sure that I can get them to work), and if there is a way to dynamically access the properties of the objects properties, It will save me from creating yet another large block of code for my project. If you want to see the unfinished project, go to [URL]
I want to know the difference between [object main timeline], [object Stage] and root in as3? I have read from the topic How stage, root, and MainTimeline Fit Together. But I didn't get clearly.
View 3 RepliesI think i am lost with basics itself. What is the difference between these two. String object is an instance of String Class.
[Code]...
Allright, i receive a string and want to convert it to object. here a test that i have made:
[code]....
this work pretty fine... but i am receiving the object property as follow: "{a:'test',b:'testAgain'}" How can i easily convert it to object properties?
I'm basically loading an XML file to assign instances of a movie clip a distinct value, which it uses to modify its height. So, I'm looping through the xml and instantiating my class Object each time (Rect) and then placing that Object into an array:
Code:
function loadXML(loaded){
if(loaded){
var boxArray:Array;
xmlNode = this.firstChild;
[code]....
the trace here always comes up undefined. "listPosition" in this bit is an Rect parameter, defined in the previous bit of code as "i", so I can keep track of the order of the stack.I've found one or two examples of putting objects into an array and getting them back out, but it doesn't seem to work with this, maybe because I'm using a class. I don't know.Could this be an area where I need to use the array access brackets, like around the movie clip the object is loaded into. I've tried everything I can think of -- referencing back to the movieclip, adding extra objectRef type parameters... nothing has worked yet.
1) Is it true that every data type within as3 is a subtype of Object?
2) Is there any (ANY) difference between typing a variable or function argument or function return as Object versus *?
Is there any difference between those three declarations?
var x;
var y:Object;
var z:*;
Is there anything in AS that's not an Object?
What exactly is the difference between an object and a dictionary in Actionscript?
var obj:Object = new Object();
obj.something = "something";
var dict:Dictionary = new Dictionary();
dict.something = "something";
trace(obj.something, dict.something);
The trace statement seems identical...
What is exactly difference between casting with np: DisplayObject(myObj) or
myObj as DisplayObject
What the difference between an object and an array is?
View 14 RepliesI have a movieclip in the library with the linkage name:BackgroundClip, so in the constructor I create it, add it to the display list and can even access and modify its properties, which I tested with the x position. Now what im having issues with is getting the stage resize listener to adjust the BackgroundClip instance, bg, to the stages width and height. In the clip is an image, so if someone has a better way of using classes to create full screen liquid gui im all ears![code]
View 4 Replieswhy I cannot access the alpha property of the mc called 'newImageContainer' below? (This is just an extract of the code):
Code:
var newImageContainer = new mcGroupItemHolder();
var newMc_thumbnailBG = new mc_thumbnailBG();
[code]......
I don't understand what is structurally different between a Value Object and a Class in ActionScript3. Can any Class be a VO if you decide to call it one?
View 1 RepliesWhen declaring a variable to have an open datatype, is there any difference, especially a performance difference, between typing a variable as a "wildcard" (I'm not sure of the official name for this) and typing a variable as an Object?
var myVar:*;
var myVar:Object;
I have following datagrid[code]...
I want to send a name of opponent to a webserver after Delete button is clicked. Can I access correspondent value in datagrid on click event?
I have a getter within a class which is used to make my property skin:DisplayObject read-only. This class also has a property body:AvBody which is used to define the x y width height etc of the object, which in turn positions the skin.
What I want to do is disable access to the properties x and y on skin unless accessed from within the internal namespace (where AvBody is also located) Is this possible?
Note: I can't make skin any type other than DisplayObject (I can't even make skin a class that extends DisplayObject because it creates issues with library symbols).
I'm loading a bunch of AS2 SWF's into a main AS3 SWF. How do I access the properties of the AS2 SWF's from the AS3 SWF? Or is that not possible?
View 3 RepliesI have a calendar where each day is a movie clip called 'day'.I use calendar1 movie clip as a parent to day, which means day is inserted into calendar1 using this line..the issue is that I can't access any of the checkbox properties, but all of the text properties as illustrated below.[code]
View 0 RepliesI need access to the properties of a file I load on the next line. Specifically, trying to pull the _height and _width off of it.
I think it's being bungled up because it's inside a function running two (nested) for statements. Let me post up the code for you geniuses[code]...
The width traces fine in the onLoadInit, but only AFTER the function that is creating and positioning the movieclips is finished running. They are nested in something of a complicated heirarchy so to save the widths in another array and then try to move them all later would be bonkers.
here is my code
Code:
package
{
import flash.events.*
import flash.display.*
[Code]....
does it have to do anything with ADDED_TO_STAGE event?
Let me just start by saying this forum is awesome, over the past 3 years I've found nearly all of the answers to my AS questions without posting once... That streak ends today.I'm building a site where the client is going to be able to upload various backgrounds which load depending on which tab they click on.
The class is BigBackground.as. It does the loading of the backgrounds, and then in the .fla I would like to manipulate these "BigBackgrounds" starting with the width. However, even though the width traces correctly from BigBackground.as, the width traces to 0 from the .fla file. I can access width from the class, but how can I access the width & height from the .fla?[code]...
What is the differences in use of these two objects? Which one should be used for a "Youtube-like" video player with a custom skin and playlist?
View 2 RepliesI have 2 possiblities. It looks like these are the same (or I'm wrong). Which is better and why?
var quest1:DisplayObject = FrameCanvas.baseCanvas.addChild(app.questionmark1); //
quest1.x = posX; //
quest1.y = posY; //
or
app.questionmark1.x = posX;
app.questionmark1.y = posY;
Premesis:I am using actionscript with two arraycollection containing object with value to be matched...Let's assume I have two list of elements A and B (no duplicate values) and I need to compare them and remove all the elements present in both, so at the end I should have
in A all the elements that are in A but not in B
in B all the elements that are in B but not in A
now I do something like that:
for (var i:int = 0 ; i < a.length ;)
{
var isFound:Boolean = false;[code].....
I cycle both the array and if I found a match I remove the items from both of the array (and don't increase the loop value so the for cycle progress in a correct way).I was wondering if (and i'm sure there is) there is a better (and less CPU consuming) way to do it...