ECMAScript Native Objects:

Array, Boolean, Date, Function, Global, Math, Number, Object, String

Netscape JavaScript Core Objects:

Array, Boolean, Date, Function, Math, Number, Object, RegExp, String
Note: ECMAScript Global object is equivalent to the global functions supported by Netscape JavaScript.

Microsoft JScript Intrinsic Objects:

Array, Boolean, Date, Function, Global, Math, Number, Object, RegExp, Regular Expression, String
Note: Netscape JavaScript's RegExp object is equivalent to MS JScript's RegExp and Regular Expression.

Object	Description
Array	Represents an array. 2D Array Example
Boolean	Represents a Boolean value.
Date	Represents a date. Display Time Example
Function	Specifies a string of JavaScript code to be compiled as a function.
Math	Provides basic math constants and functions; for example, its PI property contains the value of pi. Random Number Example
Number	Represents primitive numeric values.
Object	Contains the base functionality shared by all JavaScript objects.
RegExp	Represents a regular expression; also contains static properties that are shared among all regular expression objects.
String	Represents a JavaScript string.