JavaScript Pocket Reference

Error

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JavaScript Pocket Reference

Error

predefined exception types

Core JavaScript 1.5; JScript 5.5; ECMA v3

Inherits From: Object

Constructor

new Error(message)

new EvalError(message)

new RangeError(message)

new ReferenceError(message)

new SyntaxError(message)

new TypeError(message)

new URIError(message)

These constructors create an instance of the Error class or of one

of its subclasses. The

message argument is optional.

Properties

Error and all of its subclasses define the same two properties:

message

An error message that provides details about the exception.

This property holds the string passed to the constructor, or an

implementation-defined default string.

name

A string that specifies the type of the exception. This prop-

erty is always the name of the constructor used to create the

exception object.

Methods

toString()

Returns a string representation of the Error (or subclass)

object.

Event

event details

DOM Level 2, IE 4, Netscape 4

Description

The Event object serves to provide both details about an event

and control over the propagation of an event. DOM Level 2

defines a standard Event object, but Internet Explorer 4, 5, and 6

Event

JavaScript Pocket Reference

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use a proprietary object instead. Netscape 4 has its own propri-

etary object that is different from the other two. DOM Level 2

does not standardize ...