FLASH® LITE™ 2.x - Adobe Help and Support

Example
In the following example, if the String.fromCharCode(Key.getAscii()) parameter
evaluates to A, the trace() statement that follows case "A" executes; if the parameter
evaluates to a, the trace() statement that follows case "a"executes; and so on. If no case
expression matches the String.fromCharCode(Key.getAscii()) parameter, the trace()
statement that follows the default keyword executes.
var listenerObj:Object = new Object();
listenerObj.onKeyDown = function() {
switch (String.fromCharCode(Key.getAscii())) {
case "A" :
trace("you pressed A");
break;
case "a" :
trace("you pressed a");
break;
case "E" :
case "e" :
trace("you pressed E or e");
break;
case "I" :
case "i" :
trace("you pressed I or i");
break;
default :
trace("you pressed some other key");
break;
}
};
Key.addListener(listenerObj);
See also
=== strict equality operator
throw statement
throw expression
Generates, or throws, an error that can be handled, or caught, by a catch{} code block. If an
exception is not caught by a catch block, the string representation of the thrown value is sent
to the Output panel.
Typically, you throw instances of the Error class or its subclasses (see the Example section).
Parameters
expression:Object - An ActionScript expression or object.
200 ActionScript language elements