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The Latest

Determine Whether a Value is Numeric

JavaScript has a built-in function called isNAN that can be used to check if a value is numeric or not. The isNan function returns true if the value is not

Range Checking Vectors

This standard library vector can be used like an array. For example: std::vector v(2); // vector of size 2v[0] = 5;v[1] = v[0]; If you’re using an out-of-range index, the

Rename a File Using Java

Java allows you to rename a file by using the renameTo(File file) method, in the java.io.File class. First, obtain a reference to the file that you want to rename. Second,

Date Formats for the DATE Data Type

SQL Server offers two date formats for the DATE data type that are considered safe in situations where computer settings differ or when SET DATEFORMAT or SET LANGUAGE are used.

Detect Web Form Field Changes in ASP.NET

nowing whether a group of form fields have changed and which fields have changed can be beneficial in many ASP.NET Web applications. ASP.NET triggers a “value change” event at the

Compilation and Deployment in ASP.NET 2.0

t’s crucial to understand the changes to the compilation process from ASP.NET 1.x to ASP.NET 2.0 so you can debug your Web applications effectively. This article shows you how compilation

Heard on .NET Rocks!: Kimberly Tripp on SQL Server

am the host of “.NET Rocks!”, an Internet audio talk show for .NET developers online at www.dotnetrocks.com and msdn.microsoft.com/dotnetrocks. My co-host Richard Campbell and I interview the movers and shakers

Visual Studio 2005 … That Legacy Software!

dmittedly, I’m excited about the many new technologies coming out of Microsoft. So excited that I can’t even decide what to play with first! I wrote about this in a

Wasting Energy and Rotating Things

‘m guessing that there’s someone out there (there has to be at least one) who cares how the home theater turned out. (For some of the details, check out the

Axes and Imagination

aybe you’ve heard the tale of two woodsmen. They both have the same job and job ethic. They begin their shifts at 8am and cut wood until 5pm every day.

Speed Up Your AJAX-based Apps with JSON

SON stands for JavaScript Object Notation and is a lightweight data-interchange format. Because it is text-based it is easy for humans to read and write, and it has a regular

Compatible Stylesheets with xsl:fallback

The following code is an example of how to use the xsl:fallback element to achieve full compatibility between XSLT different versions. Imagine that some future 5.0 version of XSLT implements

Determine Your Network Interfaces and IP Names

Use this to determine the names of your network interfaces and IPs. Of course, it can be used only for machines that have more than one network interface. import java.io.*;import

Compress Binary Messages Using SQL

inary data is natural for computers. Everything running on the computer’s physical layer, in the registers, ALU, memory, and so on, is just a result of manipulating a set of

JUnit Testing Using Java ME JUnit Frameworks

Unit tests have become a staple part of most Java Standard Edition (SE) and Enterprise Edition (EE) applications?especially those that espouse test-driven development. Kent Beck and Eric Gamma’s original Smalltalk

Disable the Standard Window Close (X) Button

This code disables the standard Window Close (X) button on the upper right corner of Windows forms: Private Const SC_CLOSE As Integer = &HF060Private Const MF_GRAYED As Integer = &H1

Using the unparsed-entity-uri XSLT Function

This tip shows how to insert an image into the result-tree of an XSLT transformation using the unparsed-entity-uri function. Suppose you have this element: And an unparsed entity such as

Using Complex Numbers

The C++ standard library can handle complex numbers. Complex numbers may be used by including . The class std::complex is defined as a template, allowing complex numbers to use different

Using the Logger to Trace JDBC Driver Managers and Drivers

Both JDBC drivers and the DriverManager use the PrintWriter for logging/tracing. Using java.util.Logger as your logging/tracing tool allows you to take advantage of the Logging framework. Create an adapter class