First class functions. Beyond the pure function ideal, in actual coding practice functional programming hinges on first class functions. A first class function is a function that is treated as a ...

An abstract class is a template definition of methods and variables in a specific class, or category of objects. In programming, objects are units of code, and each object is made into a generic class ...

The "class" attribute is one of the most common and powerful attributes in HTML. It allows you to assign a name or a group of names to an HTML element, which can then be used as a selector in CSS.

What does object-oriented programming actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Programming is Problem Solving. When we bring programming to math class, we add a new layer of problem solving: translating mathematical problems/ideas to execute them in code. This often requires ...

Furthermore a class may have certain properties that are always true about that class; these properties are called invariants. This file contains an implementation of contract programming for CLOS.