switch

The switch statement is useful if you have several execution paths. It provides functionality similar to a long series of if...else if statements, but is somewhat easier to read. Instead of testing a condition for a Boolean value, the switch statement evaluates an expression and uses the result to determine which block of code to execute. Blocks of code begin with a case statement, and end with a break statement. For example, the following switch statement prints the day of the week based on the day number returned by the Date.getDay() method.

var someDate:Date = new Date();
var dayNum:uint = someDate.getDay();
switch(dayNum) {
     case 0:
     trace("Sunday");
     break;
     case 1:
     trace("Monday");
     break;
     case 2:
     trace("Tuesday");
     break;
     case 3:
     trace("Wednesday");
     break;
     case 4:
     trace("Thursday");
     break;
     case 5:
     trace("Friday");
     break;
     case 6:
     trace("Saturday");
     break;
     default:
     trace("Out of range");
}