I'm trying to check to see if an object exists by using a simple if statement.
if (object.name) {
//Do this
}
However, if the object doesn't exist, I get this error, "Error #1010: A term is undefined and has no properties" - which I understand is because the object doesn't exist. Is there a better way to check to see if an object exists?
check to see if a node exists in an XMLList object. I have a list of objects to convert to XML, but if an xml entry already exists, then the following objects with the same name get added as children.
View 2 RepliesI am trying to avoid this error:TypeError: Error #1010: A term is undefined and has no properties.It is being caused when I reference an object that does not exist. My code automically goes through an array of objects and will sometimes try to reference a location that does not exist (like [-1][6] for example).I am trying to set a variable based on another variable from an object in that array like so:ob.upleft = Map.baseTileArr[ob.upY][ob.leftX].walkable;If it does not exist, my program stops and I am thrown that error. My question is, how can I check to see if that object's variable in the array even exists before assigning the variable?
I've tried this, but it did not work:
if(Map.baseTileArr[ob.upY][ob.leftX]){
ob.upleft = Map.baseTileArr[ob.upY][ob.leftX].walkable;
[code].....
I have a weird problem. An Object is being passed to my function, and some parameters are optional, so naturally I would check to see if they are there, and if not, do nothing.However, I'm getting a null reference error (#1009) when I'm just checking it. Here's the sample:
public function parseObject(params:Object) {
if (params.optionalParam)
trace("Got Optional Parameter!");
[code]......
I am trying to use a mouseevent.startdrag to move a particular movieclip, but I don't know how to go about checking the object in question. The code below doesn't seem to work with either ==Object(MCsquare) or just ==MCsquare.
function onStartDrag(evt:MouseEvent):void
{
trace(evt.target);
[Code]....
How can I run a check to see if the target object is MCsquare?
Is there a way in flash to check to see if a function/method exists before calling it?
I tried something like if(typeof object.methodname == "function") and it didn't like it.
I have a Dynamic text field embedded into a movie clip on the same frame different layer there is some action script. A series of If statements Which is basically to see if text field contains text so if it dosent contains text I can assign text to the text box
if(orderMenu_mc.Item2_txt.text == "")
{
emptyText = 2
trace(emptyText+"Hello")
}
There is no text. Yet the if statement is false. Is this a logic error or is there a better method of achieving this PS i have tried orderMenu_mc.Item2_txt.text.length == 0 which also evaluates to false when there is no text in the field.
I'm trying to check to see if a variable exisits using:
if (_root.displayCurrentvar.length > 0)
is there a function I could use like isNull ?
I have a movieclip created with the following code:
var thumbContainer:MovieClip = new MovieClip();
thumbContainer.name = "thumbContainer";
stage.addChild (thumbContainer);
If the window gets larger/smaller I want everything back in place. So I have an stage Event Listener. Now I want to see if this mc exists to put back in place. I've tried different ways but keep getting an error that does not exist.1120: Access of undefined property thumbContainer.
if (this.getChildByName("thumbContainer") != null) {
trace("exists")
}
and
if ("thumbContainer" in this) {
trace("exists")
}
In flex, How can I check if a component exists?
View 1 RepliesI want to check if the element in this structure exists for each child. The problem is that the children don't have the same name (product,prepack) and I don't want to change the order. Additionally I can't change the XML structure.
[Cdoe...
I am using flash cs5 and developing for iOS. I am using the application storage directory as well. But, in my code, a file in the storage directory is trying to be read before it is created, and therefore results in errorst?
View 1 Repliesif (XMLData.product[i].image[0].thumb) {thumbURL = XMLData.product[i].image[0].thumb;}Returns: TypeError: Error #1010: A term is undefined and has no properties.Same withif (XMLData.product[i].image[0].thumb!=undefined) {thumbURL = MLData.product[i].image[0].thumb;}
View 2 RepliesI want to add the possibility to take a webcam picture to my project, but only if the user's system has a webcam installed (obviously). In other words, those without a webcam should not notice the new function at all.
So basically, I need to check if a webcam exists on the user's computer.
I found a couple of ways to accomplish this, but none seem to work when I test them on a webcam-less system.
* One way to detect the presence of a webcam is to check if (Camera.names.length > 0).
However, on my 'blind' (webcam-less) computer, Camera.names.length returned 1 nonetheless.
* The other is to check if (Camera.getCamera() != null).
If I understand it correctly, 'getCamera' is specific to Actionscript 3. My whole project is in Actionscript 2, I'm afraid it's too late to switch. The AS2 equivalent would be (Camera.get() != null). But I tested that on my 'blind' system and again, it didn't return null.
In short, both these methods indicated the presence of a webcam where there was none.
So my question is:
Is there a really foolproof way to detect the presence/absence of a webcam in Actionscript 2? Before the 'allow/deny' dialog pops up?
Is there a way to check if a file path exists within a local directory.[code]...
View 5 Repliesactionscript but have managed to load an external .SWF file into an existing flash file.I have a button that runs the following code which successfully removes the loader:
removeChild(myLoader);
SoundMixer.stopAll();
My problem is that if I click to go elsewhere my loader keeps playing.What code can I include on all my other buttons to unload the loader before going somewhere else in my flash file? I've tried just running the 2 lines above but get an error because sometimes myLoader doesn't always exist.
Is there a way to determine if an object has a method, without error catching? like "hasOwnProperty()" except hasOwnMethod().
View 5 RepliesHow do you check if a movieclip exists?
View 5 RepliesI'm being a little dense today, I swear I've done this so many times before, but it's just not working out.
Is there a way to see if a MovieClip exists within another MovieClip that has a class applied to it?
My code:
Code:
package{
import flash.display.MovieClip;
public class Test extends MovieClip{
[Code].....
In AS2, I'd create a movieclip and give it an instance name. Then all I'd have to do for example is, check if _root["myinstance"+i] == undefined but in AS3, if i'm dynamically creating 10 movieclips, how do i check to see if it already exists?
View 14 RepliesSo i have a timer running infinitely time, and there are 2 things that can trigger the timer to stop and be removed, and both scenarios can occur, so I need to check if the timer is on before trying to stop and remove it. How can I check whether a timer exists and/or is running?
View 4 RepliesAdobe Air (2.0) how to check if folder exists? (like folder C:Program Files (x86) on windows) (code example needed, please)
View 2 RepliesIn flex, how to check if a variable exists? I have tried using
if (this['some_variable'] != undefined) {
//do something
}
There is a run time error saying the property some_variable does not exists. I have checked with null instead of undefined, still the same error.
Based on the replies I have used this.hasOwnProperty('variable_name'). I found that its returning true if variable_name is a public but false if its private/protected. How to check for a private variable?
I need to access information in my XML. The information I need is not stored on every object in my XML, only on the parent. But how can I check if there is a parent or not, so it wont throw an error when selecting the first object in the tree (having no parents)?
[Code]...
How do I check if an element in an array exists?
I'm looking for something along the lines of this, but don't know the proper syntax:
ActionScript Code:
if(array[5].exists()) {
// Do something.
}
else {
// Do something else.
}
Well, I looked at the example, and looks like that was still not what I wanted. Interestingly, I took the middle for loop out and now it appears I am not having issues anymore.[code]
View 7 RepliesHow do you check if a movieclip exists?
View 5 RepliesDon't mind about the file's content, just want to know if it exists or not...
View 3 RepliesWhat can I use to check if a movieclip has been added to the stage yet without flash throwing a bunch of errors at me? For example, I have a movieclip with the instance name(mcONE) on my stage. And I'm currently using this bit of code to check if it's on the stage
[Code]...
Is there a way to check if a derrived class contains a function. If so, call it otherwise keep going.
"myClass.as"
Code:
package{
public class myClass extends mySuperClass{
public function myClass(){
[code]....
When Flash checks a function that does not exists, its throws the error "ReferenceError: Error #1069" (5th line of myClass.as in the exemple).
