Sometimes you would like to have the whole alphabet in an array. It´s very easy to do this by writing each letter of the alphabet in an array. But you can also use a handy function which gets two parameters, the start character and the end character. The function returns an array with all letters between these two characters.

If you have a closer look at the ASCII table, you will see that each character has an own decimal number which can be used with the static method fromCharCode() of the String class.

So this is my function:

var uppercaseLetters:Array = getChars("A", "Z");
 
function getChars(startChar:String, endChar:String):Array
{
	var startUnicode:Number = startChar.charCodeAt(0);
	var endUnicode:Number = endChar.charCodeAt(0);
	var chars:Array = [];
 
	for(var i:uint = startUnicode; i <= endUnicode; ++i)
	{
		chars.push(String.fromCharCode(i));
	}
 
	return chars;
}
 
trace(uppercaseLetters);
//output:A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z
 

If you would like to get the alphabet in uppercase and lowercase, you can´t do this:

var allLetters:Array = getChars("A", "z");
 

This will return an array with some other special characters. Just create two arrays and concat them like this:

var uppercaseLetters:Array = getChars("A", "Z");
var lowercaseLetters:Array = getChars("a", "z");
var allLetters:Array = uppercaseLetters.concat(lowercaseLetters);