ArgumentError

Package	Top Level
Class	public dynamic class ArgumentError
Inheritance	ArgumentError Error Object

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 9, AIR 1.0, Flash Lite 4

The ArgumentError class represents an error that occurs when the arguments supplied in a function do not match the arguments defined for that function. This error occurs, for example, when a function is called with the wrong number of arguments, an argument of the incorrect type, or an invalid argument.

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Responding to error events and status

Public Properties

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	Property		Defined By
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		errorID : int [read-only] Contains the reference number associated with the specific error message.	Error
		message : String Contains the message associated with the Error object.	Error
		name : String Contains the name of the Error object.	Error

Public Methods

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	Method		Defined By
		ArgumentError(message:String = "") Creates an ArgumentError object.	ArgumentError
		getStackTrace():String Returns the call stack for an error at the time of the error's construction as a string.	Error
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String [override] Returns the string "Error" by default or the value contained in the Error.message property, if defined.	Error
		valueOf():Object Returns the primitive value of the specified object.	Object

Constructor Detail

()

Constructor

public function ArgumentError(message:String = "")

Runtime Versions:

Flash Lite 4, Flash Player 9, AIR 1.0

Creates an ArgumentError object.

Parameters

message:String (default = "") — A string associated with the error.

Examples How to use this example

ArgumentErrorExample.as

The following example shows how an ArgumentError error is generated and handled within a try..catch statement. The println() function takes one argument, a single string, but because two strings are supplied, the error is thrown. Typically, the compiler might catch such an error, but the this[] syntax in the try statement bypasses the compiler's syntax checking for the function.

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package {
    import flash.display.Sprite;
    
    public class ArgumentErrorExample extends Sprite {
        public function ArgumentErrorExample() {
                println("Hello World");
                
                try {
                    this["println"]("Hello", "World");
                }
                catch(e:ArgumentError) {
                    trace(e);
                }
        }
        
        public function println(str:String):void {
            trace(str);
        }
    }
}

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ArgumentError - AS3

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ArgumentError