public name : String

Contains the name of the Error object. By default, the value of this property is "Error".

Example

In the following example, a function throws a specified error depending on the two numbers that you try to divide. Add the following ActionScript to Frame 1 of the Timeline:

function divideNumber(numerator:Number, denominator:Number):Number {
    if (isNaN(numerator) || isNaN(denominator)) {
    throw new Error("divideNum function requires two numeric parameters.");
    } else if (denominator == 0) {
    throw new DivideByZeroError();
    }
    return numerator/denominator;
}
try {
    var theNum:Number = divideNumber(1, 0);
    trace("SUCCESS! "+theNum);
    // output: DivideByZeroError -> Unable to divide by zero.
} catch (e_err:DivideByZeroError) {
    // divide by zero error occurred
    trace(e_err.name+" -> "+e_err.toString());
} catch (e_err:Error) {
    // generic error occurred
    trace(e_err.name+" -> "+e_err.toString());
}

To add a custom error, add the following code to a .AS file called DivideByZeroError.as and save the class file in the same directory as your FLA document.

class DivideByZeroError extends Error {
    var name:String = "DivideByZeroError";
    var message:String = "Unable to divide by zero.";
}

See also

throw statement, try..catch..finally statement