 |  | | From Scott Orgera, your About Programming Editor | | | This week we provide an introduction to Ruby, review the multitude of tools used for writing JavaScript, offer five very convincing reasons to utilize XML, show you how to calculate string length in Perl, and much more... | | | | | Sign up for more free newsletters: | | | | | Ruby is unique among object-oriented scripting languages. In a sense, it's a purist's language for those who love object-oriented programming. Everything, without exception, is automatically an object, whereas in other programming languages this isn't true. What is an object? Well, in a sense you can think of it in terms of building a car. If you have a blueprint for it, then an object is what's built from that blueprint. It contains all the attributes that the object holds (i.e. make, model, color) and the actions it can perform. But even as a pure object-oriented language, Ruby doesn't sacrifice any usability or flexibility by leaving out features that aren't expressly related to object-oriented programming. READ NOW | | | | XML provides a designer with a way to separate data from the format. XML is a markup language, whose acronym stands for Extensible Markup Language. By design, it is a carrier for information that needs to be incorporated into a document. Simply put, XML is a briefcase where you store data. Consider these five reasons why you should use it in your designs. READ NOW | | | | The first tool that you need to write JavaScript is a plain text editor, or at least an editor capable of saving what is typed into it as plain text. If you are using Windows then Notepad is an appropriate choice. On the Mac you could use Simpletext. Linux provides lots of plain text editors, many of which are probably installed on your system so you just need to choose your favorite one. This article discussed these tools and more. READ NOW | | | | This article shows you how to code and use WPF "User Controls". Just as there is a Button, Label, and many other components that perform more or less the same function in both Windows Forms and WPF - Windows Presentation Foundation - there is also a new User Control technology just for WPF. In the case of WPF, the name is slightly misleading because it actually functions more as a way of organizing your XAML code than an actual, reusable "ToolBox" control. READ NOW | | | | | | An every-morning rundown of the day in history, with headlines and trends produced by your pals at About.com. Click here to sign up! It's free (of course) and we think you'll like it! | | | | | Want More From About.com? | | | | Sign up for more free newsletters on your favorite topics
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