w3schools    w3Schools
Search W3Schools :
   
HOME HTML CSS XML JAVASCRIPT ASP PHP SQL MORE...   References Examples Forum About
ADVERTISEMENTS

XML Certification
Download XML editor
Custom Programming
 
Table of contents
JS Reference
JS Overview
JS Array
JS Boolean
JS Date
JS Math
JS Number
JS String
JS RegExp
JS Functions
JS Events

DOM Objects
DOM Window
DOM Navigator
DOM Screen
DOM History
DOM Location

DOM Document

DOM Anchor
DOM Area
DOM Base
DOM Body
DOM Button
DOM Event
DOM Form
DOM Frame
DOM Frameset
DOM IFrame
DOM Image
DOM Input Button
DOM Input Checkbox
DOM Input File
DOM Input Hidden
DOM Input Password
DOM Input Radio
DOM Input Reset
DOM Input Submit
DOM Input Text
DOM Link
DOM Meta
DOM Object
DOM Option
DOM Select
DOM Style
DOM Table
DOM TableCell
DOM TableRow
DOM Textarea

Selected Reading
Web Statistics
Web Glossary
Web Hosting
Web Quality

W3Schools Tutorials
W3Schools Forum

Helping W3Schools

 

JavaScript Boolean Object Reference


The Boolean Object

The Boolean object represents two values: "true" or "false".

Syntax for creating a Boolean object:

var myBool=new Boolean(value)

Note: If the value parameter is omitted, or is 0, -0, null, "", false, undefined, or NaN, the object is set to false. Otherwise it is set to true (even with the string "false")!

Boolean Object Properties

FF: Firefox, N: Netscape, IE: Internet Explorer

Property Description FF N IE 
constructor Returns a reference to the Boolean function that created the object 1 2 4
prototype Allows you to add properties and methods to the object 1 2 4

Boolean Object Methods

Method Description FF N IE
toSource() Returns the source code of the object 1 4 -
toString() Converts a Boolean value to a string and returns the result 1 4 4
valueOf() Returns the primitive value of a Boolean object 1 4 4



Learn XML with <oXygen/> XML Editor - Free Trial!

oXygen - Probably The World's Best XML Editor   

oXygen helps you learn to define, edit, validate and transform XML documents. Supported technologies include XML Schema, DTD, Relax NG, XSLT, XPath, XQuery, CSS.

Understand in no time how XSLT and XQuery work by using the intuitive oXygen debugger!

Do you have any XML related questions? Get free answers from the oXygen XML forum and from the video demonstrations.

Download a FREE 30-day trial today!


 
WEB HOSTING
E Components
Ecommerce
Components
for ASP.NET
$15 Domain Name
Registration
Save $20 / year!
Buy UK Domain Names
Register Domain Names
Cheap Domain Names
Cheap Web Hosting
Best Web Hosting
PHP MySQL Hosting
Top 10 Web Hosting
UK Reseller Hosting
Web Hosting
FREE Web Hosting
WEB BUILDING
Website Templates
Flash Templates
Website Builder
Internet Business Opportunity
Custom Programming
FREE Trial or Demo
Web Content Manager
Forms,Web Alerts,RSS
Download XML editor
FREE Flash Website
FREE Web Templates
EDUCATION
US Web Design Schools
HTML Certification
JavaScript Certification
XML Certification
PHP Certification
ASP Certification
Home HOME or Top of Page Validate   Validate   W3C-WAI level A conformance icon Printer Friendly  Printer Friendly

W3Schools is for training only. We do not warrant the correctness of its content. The risk from using it lies entirely with the user.
While using this site, you agree to have read and accepted our terms of use and privacy policy.
Copyright 1999-2009 by Refsnes Data. All Rights Reserved.