Variables Question

Hey, why is it that this works:

number = 10;
button.onRelease = function(){
    trace(number)
    }

var number = 10
button.onRelease = function(){
    trace(number)
    }

button.onRelease = function () { };

var number = 10;
trace (number);

Place the variable inside the function

strange, i figured it was always the case, i’m sorry, what I meant was:

function definer(){
var number = 10;
trace("the value is really defined");
}
definer();
button.onRelease = function()
{
    trace(number); //says undefined
}

And the question is, how can I get the value of number in the onRelease function?

Okay, that makes sense, that means that when you delete “var” it becomes a global variable?

Thank you all for your answers

I really need to get some sleep now, it’s 0:31 here now, so I’ll check this out tomorrow

You have multiple choices here:

//declare here, then just use it
var myVar:Number;
.....
function foo(){
      myVar = ....
      ... = myVar;
}

function bar(){
     myVar = ....
     .... = myVar
}

foo();
bar();

2. you can declare it as _global. by prefixing a variable with _global. you will have access to that var anywhere in your application, provided you already assigned a value to it. Also, _global variables are ALWAYS typeless, you cannot declare var _global.myVar:Number, it will give you an error.

//note that here i don't do any declaring
function foo(){
     //use it here first time  - you must assign it a value
     _global.myVar = ....
    //note the *_global* prefix
}

function bar(){
   //here just use it in any way...
    .... = _global.myVar;
}

foo();
bar();

The correct way is always declaring any variables first in your script, and as much as possible avoid typeless variables – it’s very good practice. Also, using _global is not recommended, because you always must have control over your application, so you won’t use it before it’s declared (or assigned a value).

Ok, thanks. Really helped me on this

I feel like such a |\|o0b