Source Code Online Home Categories Top Code New Code Submit Code
Search
Subject Directory
 ASP
 ASP.NET
 C/C++
 CFML
 CGI/PERL
 Delphi
 Flash
 HTML
 Java
 JavaScript
 Pascal
 PHP
 Python
 SQL
 Visual Basic & VB.NET
 XML
New Code
MySync - MySQL Synchronization 0.9
Rapid PHP Editor 2008 9.2
BusinessSkinForm VCL 6.50
Formmailer script for websites 1.1
VDaemon - PHP Form Validation Library 3.0
Scrolling Banner Ads Script 1.0
Buttons Scrolling Menu XML AS 2.0 1.0
VSpace Pal 2.0
PHP-Banner-Manager 1.6
Skinfeature GUI ToolKit 1.1
PHP Live Helper 1.8
HTML / XML Video List AS 2.0 1.0
3D Stack AS 2.0 1.0
Banner Exchange Script 1.0
Elite news php script 1.0
Top Code
Adirex 3D Chess Client 1.0
JiLMaiL 2.0
JVMail 2.0.0
P2P .htManager 0.2
Smart Font Listbox 1.0
Su Logu 0.6.2
Time and Attendance 1.0
Arbitrary-shape Popup Box 1.0
CSTreeBean 0.3
encbtn32.zip 1.00.00b
Joomla! 1.5
Libstocks 0.5.0
phpTimeSheet 1.3.0-preview 2
PicStrip
Webstores 2000 Portal 6.0
Details

Shedding Light on the JavaScript Special Values null and undefined 

 
by Infinite Software Solutions, Inc.

This is a quick reference article that discusses about defining and using null and undefined (special values) and testing for null in javascript. This reference explains that null is a value which is used for the indication of the absence of the valid data in a variable and undefined is the value that has to be provided to the variables after confirming that there is no value assigned to them. This reference will be useful for the programmers to gather more information about javascript special values.

License: Freeware

Downloads: 0

Download Shedding Light on the JavaScript Special Values null and undefined  Report Error Link
More Similar Code


Enter Null Values for DateTime Column of SQL Server is a tutorial which discusses about the error that have been raised if you do not enter the value for the DataTime column of the database table. If you do not add the data for the datatime column t



The replacement for TDateTimePicker VCL control.The features include:The Ctl3D property, which provides the control with flat look by setting Ctl3D to False.The actually working 'Font.Color' property.Custom format



Data-aware date-time picker made of borderless TDBEdit embedded into TDateTimePickerFeatures:Looks like TDateTimePicker, is rendered themed on XPcan handle NULL values: shows empty field when not



Virtual Null Modem is an utility, which purpose is to emulate one or more RS232 serial ports connected via virtual null-modem cable. Otherwise, you can create any number of pure virtual serial ports in your system (COM10, COM11, COM127 etc), that wil



The sesLib is a light native VCL components package with Delphi 5 compatible help system.The sesLib consists of three components: TsesEdit, TsesLogger, TsesDataSet.The TsesEdit is the integral component , which incapsulates the many basic



IBGenerator is a very light component for fetching generator values from Interbase generators.The classic way to fecth a generator value from a IB server is to define a stored procedure on the server and fetch the value by executing a



This is an useful article through which .NET application developers can know about how to bind the data from the database table to the datagrid control using the databind method. This article also shows various formatting options of the datagrid cont



DS Light applet displays a moving light over any JPG or GIF image given by you. An image and a scrolling text can also be inserted over the animation. The animation is displayed at random center or at mouse location. The light diameter, light type, l



The following collection of approaches to combining XML Documents is from a column, "Shedding a little Silverlight on XML", that I wrote for XML Journal a while back.



EuroConverter is a JavaScript that can be used in your web page to incorporate a currency convertor. This JavaScript can convert any of the European currencies. The values are displayed for any currency to be converted against the respective countrie

User Review for Shedding Light on the JavaScript Special Values null and undefined 
- required fields
     

Please enter text on the image