Convert Degrees To Radians And Radians To Degrees

var degrees = 90;

var radians = degreesToRadians(degrees); 
degrees = radiansToDegrees(radians);

trace(radians); //Outputs 1.57
trace(degrees); //Outputs 90

function degreesToRadians(degrees:Number):Number {
 return degrees * Math.PI / 180;
}

function radiansToDegrees(radians:Number):Number{
 return radians * 180 / Math.PI;
}

Determine Whether Number is Even or Odd

function isEvenOdd(num):String {
  if ((num % 2) == 0) {
   return "even";
  } else {
 return "odd";
  }
}

trace(isEvenOdd(2)); //Outputs even
trace(isEvenOdd(7)); //Outputs odd

Generate Random String

function generateRandomString(strlen:Number):String{
  var chars:String = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
  var num_chars:Number = chars.length - 1;
  var randomChar:String = "";
 
  for (var i:Number = 0; i < strlen; i++){
  randomChar += chars.charAt(Math.floor(Math.random() * num_chars));
  }
  return randomChar;
}
trace(generateRandomString(7));

Load And Parse XML File

XML File:

  
    picture1.jpg
    picture 1
    picture 1 description
  
  
    picture2.jpg
    picture 2
    picture 2 description
  
  
    picture3.jpg
    picture 3
    picture 3 description
  

Actionscript:

var xmlLoader:URLLoader = new URLLoader();
var xmlData:XML = new XML();
xmlData.ignoreWhite = true;
xmlLoader.addEventListener(Event.COMPLETE, loadComplete);
xmlLoader.load(new URLRequest("slideshow.xml"));
 
function loadComplete(e:Event):void {
 xmlData = new XML(e.target.data);
 for each (var picture:XML in xmlData.picture) {
  trace("Url: " + picture.url);
  trace("Heading: " + picture.heading);
  trace("Description: " + picture.description);
 }
}

Determine Whether Number is a Prime Number

function isPrime(num) {
  for (var i=(num-1); i > 1; i--) {
    if ((num % i) == 0) {
      return false;
    }
  }
  return true;
}

trace(isPrime(2)); //Outputs true
trace(isPrime(4)); //Outputs false
trace(isPrime(17)); //Outputs true

AS3 mailto

var email:String = "mailto:youremail@address.com";

button.addEventListener(MouseEvent.MOUSE_DOWN,sendEmail);

function sendEmail(e:Event):void {
   navigateToURL(new URLRequest(email), "_self");
}

Create Empty MovieClip

Here is a snippet that creates an empty movieclip. This is useful when you want to load external images or swfs into it.

var emptyMovieClip:MovieClip = new MovieClip();
emptyMovieClip.name = "emptymc";
addChild(emptyMovieClip); 

Create Dynamic Textfield

var exampleTextField:TextField = new TextField();
exampleTextField.text = "your text goes here";
exampleTextField.width = 200;
addChild(exampleTextField);
exampleTextField.autoSize = TextFieldAutoSize.LEFT;  
   
var format:TextFormat = new TextFormat();  
format.color = 0x990000;   
format.size = 20;      
exampleTextField.setTextFormat(format);