ICS3U1 Unit 2 Activity 1: Question 1

// Date Completed: July 18, 2017
// Purpose: Counting the number of vowels in a sentence.

// This line makes the button, btnCalculate wait for a mouse click
// When the button is clicked, the determineVowels function is called
btnCalculate.addEventListener(MouseEvent.CLICK, determineVowels);

// This line makes the textinputs: txtinSentence wait for a mouse click
// When a textinput is clicked, the clearLabel 1 function is called
txtinSentence.addEventListener(MouseEvent.CLICK, clearLabel1);

// This is the determineVowels function
// e:MouseEvent is the click event experienced by the button
// void indicates that the function does not return a value
function determineVowels(e:MouseEvent):void
{

  // Declare the variables
  var Origin:String;
  var Count:Number = 0;
  var Consistent:String;

  //Declare the value of the Origin
  Origin = String(txtinSentence.text)
  Consistent = Origin.toLowerCase(); // Convert the string to upppercase for easier detection

  // Introduce a loop through the Consistent
  for (var i = 0; i <= Consistent.length - 1; i++)
 {
  //If character is found to be a vowel, add 1 to current vowel count
    if (Consistent.charAt(i) == "a" || Consistent.charAt(i) == "e" || Consistent.charAt(i) == "i" || Consistent.charAt(i) == "o" || Consistent.charAt(i) == "u")
    {
      Count += 1;
    }

  }

  lblResult.text = "There are " + Count + " vowels in the sentence.";

 }

// This is the clearLabel1 function
// e:MouseEvent is the click event experienced by the textinput
// void indicates that the function does not return a value
function clearLabel1(e:MouseEvent):void

{
    lblResult.text = "";
    txtinSentence.text = "";
}