JavaScript Tutorials - Herong's Tutorial Examples - 2.33, by Herong Yang
Primitive Data Types - Numbers, Strings, and Booleans
This section provides a quick description of JavaScript primitive data types, numbers, strings, and booleans.
JavaScript supports 5 primitive data types:
JavaScript is a dynamic typing language. Data types are associated with values, instead of variables. In other words, variables are declared without specific data types. They can be assigned with values of any data type.
In JavaScript source code, values of different data types can be provided as value literals as described in sections below.
Table of Contents
ECMAScript Language Specification and JavaScript Dialects
►Data Types, Variables and Expressions
►Primitive Data Types - Numbers, Strings, and Booleans
Declaring Variables - "var" Statements
Operators and Expressions - Examples
Creating, Accessing, and Manipulating Arrays
Defining and Calling Functions
Web Browser Supporting JavaScript
Server-Side and Client-Side Web Scripting
Defining Your Own Object Types
Inheritance of Properties and Methods through the Prototype Object Chain
'jrunscript' - JavaScript Shell Command from JDK
Using Functions as "Function" Objects
Introduction to Built-in Object Types
W3C's Document Object Model (DOM) Specifications