How would I make an if statement to check if something is undefined
when I trace the variable, there are instances where it is undefined...I would like something to happen if the value of this variable is undefined...
I tried using null but that didn't seem to work
if(index == null)
{
...blah
}
See [URL] Now there is a button called Answera, which when clicked should have a symbol (movie clip) called Check appear at the cordinated specified. Check exists in the libary (but does not have an instance name) and no where else on the stage. when I run this code I get: 1180: Call to a possibly undefined method Check. -> var rightCheck = new Check(); How is it undefinded if it exists in the libary?
View 7 RepliesI have this code to check if a clip exists.
if ((parent as MovieClip).begr_mc != undefined){
Is there a shorter way to check the clip existence in parent clip or do I always have to use (parent as MovieClip)?
we have this variable from the internet, val(0), in a dynamic text field we can see a digit from this variable. but when we use this variable in actionscript and test it with trace, the variable shows as undefined.how can we make this work without it coming up as undefined??
View 12 RepliesI am trying make a movieclip pan across the stage on a set path, I have 5 buttons, when button 2 is clicked, the movie clip is moved to position 2, its moved on a timeline so a function starts playing the movieclip, on the timeline inside this movieclip there are conditions on specific frames showing where the the timeline stops, so when button2 is clicked a variable is created which is "label2" and the timeline stops on this point, as seen the the condition below[code]....
View 2 RepliesI have a flash file to start calling this function:
Code:
public function ConnectPHP():void
{
[code]......
I have a situation where I am reading a wide variety of data from an XML file, and if a particular bit of data is not there, I simply want to hide a button. Before I go further, all my XML data in and out works fine, that's not a problem.
If I have this node in my XML:
Code:
<name1></name1>
read it in, assign to a variable and check that variable in the debugger I get this:
Code:
Variable _level0.assocImageName1 = undefined
This is fine. It has no value, so it's undefined.
Now, if I do the most simple of If statements this check just doesn't work. I've tried something like:
Code:
if (_root.assocImageName1 == undefined) {
_root.linked._visible = false;
} else {
break;
}
Now the odd thing, is that with quotes ("undefined") or without, this doesn't work reliably. It seems to just run right past the If and perform the hiding of the button regardless.
Also, if I put something in the XML like so:
Code:
<name1>data</name1>
I get this in the debugger:
Code:
Variable _level0.assocImageName1 = "data"
And check for that like this it doesn't work:
Code:
if (_root.assocImageName1 == "data") {
But oddly enough, if I take the quotes off it does work. What's going on there? I thought you also had to always use quotes when testing a string?
I searched this a number of times, but I haven't found the answer was.I am new to scripting, so I am still finding what works and doesn't. So far I have added a number of variables in the engine I am creating. I want the player to click the button. Once press it will affect many of variables. The thing is I want to make the button unpressable if one variable is <= a number, lets say 100, and another term is true: number(_root.var2)/number(_root.var1) > 2).Here is what I have so far:
on (release) {
_root.var2 = number(_root.var2) + 1;
_root.var3 = number(_root.var3) - 1;
[code].....
the following code returns an error.. i just want to be able to check if a variable has been given a value or not...
ActionScript Code:
var newVar:Number;
// newVar = 1204;
[Code].....
also, while we're on the topic, i was wondering how to "remove" a variable from memory assuming you are not going to use it anymore...
Im looking for something similar to the php function isset where you can check to see if a variable has been set. Does anyone know how i would go about seeing if a value has been set for a Number variable?
View 4 Replieshow to make a variable contain no value and how to check if some variable contains value?
View 3 RepliesI've written a class in AS2 that extends the Object class It's an abstract class for debugging purposes. The class is defined in an external .as file. The problem is that in an .fla file, after I assigned a variable to a new instance of the class, and I trace that variable, it comes back as 'undefined' The reason it's a problem is that I want to call methods on the instance of the Debug objectIn the .fla, I have the following code:
//import any external classes
import Debug;
//Create general application properties
[code]......
I have this code:
ActionScript Code:
onLoad = function()
{
trace(_root.sliderPosition)
[Code].....
It monitors the sliders position, however, it doesnt track it. It only tracks it if i change it from onLoad to onEnterFrame.
here is the set up. I'm working with three files. Main.swf which contains navigation.swf in a blankmc, empty mc called mcContent where navigation sleclected materials are loaded.
In the navigation.fla here is the code
[AS]trace("now defining global");
_global.loadFile_str = strPicName;
[code]......
How can I test a undefined variablewith an if statement.all a this did not work and I don't want to define a value for this variable.name of the variable x.
if ((x == "") || (x == " ") (x == Nan))
{
trace("here");
[code].....
we have this variable from the internet, val(0), in a dynamic text field we can see a digit from this variable. but when we use this variable in actionscript and test it with trace, the variable shows as undefined.
how can we make this work without it coming up as undefined??
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 ?
if (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 have two objects [object MovieClip] [object ContentDisplay]
i have to differentiate them abut i can't find a method in as3 check variable type.
i am trying to find out if it is possible to check on more than one variable in an if statement at a time as i am usure how, so is it possible in as2 to check on more than one varialble if answer is equal to the number 1 and answer is to the number two and also the number three perform a function
var answer1:Number =1;
var answer2:Number =2;
var answer3:Number =3;
if(answer == 1 ) and answer == 2 and answer ==3);
if(answer == 1 and answer == 2)
I have a javascript variable in my html page and I need AS to check the page and see what the value of that variable is.
JavaScript:
Code:
<script language="JavaScript">
function getMyVar()
{
[code]....
This is the Script:[code]I want to change .cloud to .propName where I'll be able to insert the property I want to check when calling the function.something like this:[code]but it doesn't work, AS3 think the propName is a property.
View 4 RepliesI was wondering if there a way to check if a variable(x) exist.. Let me try to explain a bit more: Let's pretend i load 5 variables from a text file named myvariable1 , myvariable2, ... , myvariable5 How can i check if "myvariable(x)" = true where x = 1 or 2 or 3 ... as they were incremented..?
View 4 RepliesI need to check whether a variable is an odd number, as I alternate which part of the movie I play.[code]...
View 3 Replieshow can I check if a variable is integer or not?
View 9 RepliesI have a frame where there a 5 input text fields that the user can fill in. THey may not fill them all in though. In the next frame I want to push the fields that they filled in into an array.how do I determine what they filled in and what they didn't.
View 2 Replieshow can I check if a variable is integer or not?
View 5 RepliesIm creating an online survery and recording all the answers as a variable in _root.vars.variablename where each question creates a new variable in the vars clip.
When the user answers a question the variable is created and given a value e.g.
_root.vars.variablename1 = 1
_root.vars.variablename2 = 1
_root.vars.variablename2 = 0
But I need a piece of code to check if the variable has actually been created. The reason for this is I have a next button the user has to click once they have answered, and I dont want them to advance if they havent answered. So I need to add something like if (_root.vars.variablename1 exists ) {gotoAndPlay("answered");} else{ gotoAndPlay("noAnswer");}
I was wondering if there a way to check if a variable(x) exist. Let me try to explain a bit more:
Let's pretend I load 5 variables from a text file named myvariable1 , myvariable2, ... , myvariable5
How can I check if "myvariable(x)" = true where x = 1 or 2 or 3 ... as they were incremented..?
Ok, here's what I'm trying to doText box input var= data1Text box input var=data2
on (release) {
if (data1=="flash") {
gotoAndPlay("right");
[code].....