18 June 2022 by jim

Introduction I have enjoyed Sudoku puzzles for a while now and had the idea of trying to teach a computer to play Sudoku. This first release is fairly basic and you won’t have problems finding puzzles that it can’t complete, improvements to the algorithm can be added over time. Try the Sudoku solver Enter the […]

31 October 2021 by jim

Introduction Loops are used in programming to iterate over an item, either for a known or unknown amount of times, until a certain criteria has been reached. You have the choice of writing a single loop and specifying how it ends and writing the same code over and over again to satisfy every iteration of […]

29 October 2021 by jim

Introduction Traditional web applications reload the whole page when clicking a link, modern web applications only reload the content that has changed. As the web has matured, web applications often have a large amount of overhead; reloading every aspect of the page on each click including JavaScript and CSS vastly increases the overheads. Using AJAX […]

15 October 2021 by jim

Introduction Web accessibility is making the web available for all to use, everybody is different. Tools Before getting into some of the features available for improving accessibility, it will be useful to list some tools that can aid in finding errors and warnings on your page. Although useful these are not be thought of as […]

13 July 2016 by jim

Introduction An important part of computer programming is implementing mathematic operations. Maths can be used to implement many functions in an application; be it to include functionality that is obviously maths related, or to implement functions that may not immediately appear, to the user, as a maths problem; such as calculating the window size to maintain the correct […]

10 July 2016 by jim

Introduction Variables form an essential part of every application for storing, retrieving and generating dynamic data. In OOP (Object-Oriented Programming) there are three main types of variables which provide slightly different functionality; Instance variables, Class variables and Local variables. Instance variables An instance variable is a variable associated with an instance of a class, known […]

8 July 2016 by jim

Introduction Classes and objects are a key principal of OOP (Object-Oriented Programming). The idea behind OOP is that classes are created to represent a real world entity; this real world entity could be a tangible object, such as a person or a car, or an intangible object, such as a job position or a date. The […]

7 July 2016 by jim

Introduction What is a code comment? Code comments offer a method of annotation for the code that makes up an application, a part of an application, or simply a single line of code. When source code is compiled, or executed comments are ignored; they have no affect on the final product, the output of a method, or what […]

29 June 2016 by jim

Github What does it do This short and simple PHP function takes a plain text String as it’s input and returns rich text HTML. If any #HashTags, Twitter @UserNames or URLs are included within the input string then these are converted to clickable links to their Twitter counterpart. Usage example Using the getLinksFromTwitterText function // […]