Trying to figure out a Code that uses the [i] syntax

OK I'm having a grip on the use of loops in flex and I found somewhere the following code that uses a for loop. It is essentially a function that creates multiple labels for all elements in an object. One thing I do not understand what is the [i] on line 5 i.e. (myArray [i]) or specifically what the purpose of these hooks in situations like these are used for. It refers in search of all the strings in the array (as defined on line 3) as I assume it is? It's just quite confusing. Can someone point me to a guide on the syntax of hooks and what they mean or help out me? with an explanation? See you soon.

private function createLabels():void{

var myArray:Array = ['one', "two", 3];

for(var i:String in myArray){

var myLabel:Label = new Label();
myLabel.text = (myArray[i]);
myBox.addChild(myLabel);
}
}

You've probably seen these, but here are some links that may help.

access http://help.adobe.com/en_US/FlashPlatform//Reference/ActionScript/3/Operators.html#array_a

http://www.Adobe.com/LiveDocs/Flash/9.0/ActionScriptLangRefV3/array.html

What's happening essentially is that the loop 'for' runs through each element of the array.  Don't be confused by the fact that two of the elements of the array are strings and one is a whole number - variable I being a string has nothing to do with the data type of the elements in the table.

The following code:

private function createLabels():void
{
     var myArray:Array = ['one', 'two', 3];

     for(var i:String in myArray)
     {
          trace("i = " + i);
          trace(myArray[i]);
     }
}

gives the following results:

i = 0
one
i = 1
two
i = 2
3

We can see that the loop 'for' is the allocation of the index number of each element of the array, not the real element array ('one', 'two' or 3) to the variable i.  If appellant myArray [i] same as calling MonTableau [0] is the first time in the loop.  This type of loop 'for' is just a shorter way to do the following, which produces exactly the same results:

private function createLabels():void
{
     var myArray:Array = ['one', 'two', 3];

     for(var i:int = 0; n < myArray.length; i++)
     {
          trace("i = " + i);
          trace(myArray[i]);
     }
}

Hope that helps.

See you soon!

Tags: Flex

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