This online calculator parses emails from block of text using regular expression
Hack the three-digit code
Simple image map of France regions to illustrate usage of SVG image maps
This online calculator allows user to experiment with regular expressions.
This calculator uses regular expressions to select phone numbers from a large block of text
This article describes process of calculator creation and how to set output value.
This article describes how to control visibility of input and output controls in a calculator
This article describes the process of adding translation support to the calculator, so it can be translated into different languages.
This article describes the process of adding custom errors to the calculator
This article describes how to make calculator which outputs results in table format
This article describes how to create calculator with virtual keyboard using SVG image
This article describes how to create calculator with image map using SVG image
This article describes process of reusing another calculator's logic (algorithm) in your calculator.