What is a Regular Expression?
A Regular Expression (regex) is a sequence of characters that define a pattern that allows you to search, match, locate, replace, manipulate, and manage text. Regular expressions are very powerful, but also difficult to understand and complicated to use. More ...
Easy JavaScript FileReader Code
The JavaScript FileReader object allows web pages to read files stored on the user's computer. Files may be selected using the input element, or selected with a drag and drop operation. More ...
Network on a Chip (NoC)
NoC (Network on a Chip) is a method of placing a much larger number of processors on a multi-core chip. Much like a regular network, NoC has multiple point-to-point data links that are interconnected by routing switches. More ...
Regular Expressions Subexpressions
In this article you learned how to use subexpressions to rearrange matches in a regular expression and how to replace the value of a subexpression match in the results. More ...
IPv6 Address Compressor Expander
Enter the IPv6 address in the top text box. Click on the appropriate button: Omit Leading Zeros, Consolidate Zeros Segments, Expand Zeros Segments, Replace Leading Zeros. The formatted address will appear in the bottom text box. More ...
EMI, RFI, EMC, EMS, What's the Difference?
EMI, RFI, EMC, and EMS all refer to different aspects of radio frequency interference which may cause elecronic devices to malfunction. Correcting these problems can be an art and a science. More ...
Introduction to Draw SVG Free Online SVG Drawing Application
A drawing created on a computer can be posted directly on the Web. Drawing on a computer with a vector drawing program is the best way to go. Draw SVG seems to meet the need. In this article I touched on only a tiny part of what Draw SVG can do. More ...
Online Color Coded Resistor Calculator
To determine the resistance value of a color-coded resistor, select the colors matching each band from the drop-down lists. More ...
Inkscape Exercise: Draw Photorealistic Sphere
Although Inkscape is a 2D drawing application, it is quite capable of drawing photorealistic 3D images. To demonstrate this capability, in this article I show you, step-by-step how to draw a photorealistic sphere. More ...
Introduction to Windows PowerShell
PowerShell is a more powerful replacement for the command shell. this article explains how to run PowerShell and how to create and run PowerShell scripts. More ...
Area of a Quadrilateral Calculator
If you have a regular quadrilateral there are simple formulas to calculate the area. But if you have an irregular quadrilateral you can calculate its area by viewing it as two triangles bucked up against one another. Find the area of each triangle, and then add them together. More ...
HTML5 Header Element
The header element is one of HTML5's semantic elements. It provides a container for header information. A header element may contain ,logo author, navigation, search, version, copyright, and other such information. More ...
Independent Contractor Agreement Template
This is a template for an Independent Contractor Agreement. It contains a series of boxes. Each box does not contain the final text of the agreement. Instead, each box contains a description or suggestion of the type of information that you should type into the box. More ...
Understanding Modern PC Specifications
There is a huge variety of different PCs available out there. Its no wonder that consumers are confused about what to buy. This article explains modern PC specifications. More ...
Inkscape Text Kerning
Although Inkscape might be considered a vector drawing application, it is also a powerful typographical design program. Actually Text Kerning is not a good title for this article because in it I will cover all the different typographical adjustments you can make in Inkscape. More ...
Access Useful Laptop Settings in the Windows Mobility Center
Some useful laptop settings are collected together in a group called the Windows Mobility Center. Near the top of the secret menu, select Mobility Center. Here you'll find controls for setting the screen brightness, sound volume, screen orientation, and such. More ...
