Variable declaration.

Question

Hello there!!  As all you know, we declare on a variable name by using the keyword 'var' followed by the variable name.  My question is simply is there any way to define the variable name based on an input from the user.  Hope someone here has an appropriate answer.  Thanks in advance!!  Atar.

Answer 1

Hi there kglad!!
Again, thanks you very much about your kindness to answer to my issue.
Because I want to make sure that I've understand you correctly, I've been attached the following code and will be very happy if you will quickly review it:
//Declare on readers class:
Public class Readers{
//declare on properties:
Public var firstName:String;
Public var lastName:String;
Public var readerAge:uint;
//declare on the class's constructor:
Public function Readers(fName:String, lName:String, rAge:uint):void{
firstName = fName;
lastName = lName;
readerAge = rAge;
//add some readers:
reader1[firstNameinputTextBox.text] = new Readers("Tim","Wozniak",45);
reader2[firstNameinputTextBox.text] = new Readers("John","smith",23);
reader3[firstNameinputTextBox.text] = new Readers("Bob","Blackstone",20);
//now, assuming that the user enter the following names: Tim, John and Bob for those three instances of the Readers class, are the variables names that those instances are stored inside them will be the names that the user entered in the first name input text box? For example,can I refer to those instances' properties by the following syntax:
trace(Tim.firstName); //Tim.
trace(John.lastName);//smith.
trace(Bob.readerAge);//20.
|||||||||||||||||||~
I'll be very glad if you'll review my code and tell me if it will work.
Wait for your response ASAP!
Many thanks in advance!!
Atar.
ב-9 באוג 2011, בשעה 08:19, kglad <[email protected]> כתב/ה:
that logic is probably not what you want.  if you have a reader class there's no reason to have an addNewReader() method unless the reader class will be a repository of all reader instances.  if that's the situation, it would be better to name it something like Readers class or ReaderGroup class and also have a Reader class that contain the properties and methods of each Reader instance.
if you don't need a ReaderGroup class, there's no reason to have an addNewReader() method.  each Reader instance will be instantiated in the constructor.  and you can use a string to assign that variable but again, you can't type the variable:
somedynamicclassinstance[readerstring]=new Reader();
or, if you need a ReaderGroup class, you could use:
var rg:ReaderGroup=new ReaderGroup();  // this class should be a singleton class.
rg.addNewReader("atar11",this);  // assuming "this" is a dynamic class instance, eg a movieclip
// and in ReaderGroup:
static public function addNewReader(nameS:String,dynamicclassinstance:*):void{
dynamicclassinstance[nameS]=new Reader();
classA.push(dynamicclassinstance[nameS]);  // where classA is a static array.
// but this doesn't really make any sense.  you should just assign a property to your Reader instance, eg:
var r:Reader=new Reader();
r.nameS = nameS;
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