any way of doing this is as3?
for example, if I have a var dog:String, how can I get "dog" out of that variable?
Looking into reflection to do this, but there's got to be an easier way
-- A
4 Answers
Hope this helps.
class A {
var dog:String = "something";
var cat:String = "eatdog";
}
function getVars(obj:*):void
{
for(var i:* in obj){
trace( i + " : " + obj[i]);
// this will trace all properties of object.
// dog : somthing
// cat : eatdog
}
}
Comments
First of all if it's an instance of a custom class, you can override the
toString()method.If it's a property of the class, you can use this method — https://stackoverflow.com/posts/3781635/revisions
If it's a local variable, there is no way to get that name.
Comments
Sounds like you don't want to "get" the string representation of a variable name, but rather set the variable based on a string.
To set a variable that you have its name as a string you can do this:
this['dog'] = 'value of the dog var';
1 Comment
Marty
+1 Just note this won't work unless this is dynamic (or has the property dog).In your example I don't think there is a way to retrieve "dog" as a String.
However, if dog is a property of a dynamic Object, then you could use a function like this:
function getVarName(subject:*, value:*):String
{
for(var i:String in subject)
{
if(subject[i] == value) return i;
}
return "";
}
This function can work in a scenario like this:
var holder:Object = {
dog: "some awesome dog"
}
trace(getVarName(holder, "some awesome dog")); // dog
var dog:String; var cat:String = dog;