Feb 21Λεξούλα — Το απόλυτο Ελληνικό WordleΗ Λεξούλα (https://lexoula.com) ήρθε στη ζωή μας να μας προσφέρει ένα μικρό διάλειμμα στη βαρετή καθημερινότητα της πανδημίας. Είναι γνωστή ως το ελληνικό Wordle (Greek Wordle). Οι κανόνες απλοί: ο χρήστης έχει έξι προσπάθειες για να μαντέψει μια λέξη με πέντε γράμματα, σε κάθε προσπάθεια πολύχρωμα τετραγωνάκια δείχνουν εάν τα…2 min read
Feb 4, 2019Design Patterns — A quick guide to Decorator pattern.The Decorator pattern is a structural pattern that lets you attach additional functionalities to an object dynamically. In other words, the client has the freedom to create an object and then extend it by adding a variety of “features” to it. A good analogy to simplify this pattern is: “Wrapping…Design Patterns6 min read
Jan 28, 2019Design Patterns — A quick guide to Builder pattern.The Builder pattern is a creational design pattern that handles the construction of complex objects step by step (or brick by brick). It is probably the easiest pattern to spot if the existing code needs such design. …Programming6 min read
Jan 15, 2019Design Patterns — A quick guide to Bridge pattern.The Bridge pattern is a very important design pattern. It is commonly used in industry as it is an easy way to simplify classes by separating the low-level logic implementation from the high-level definition of a class (which is usually abstracted/inherited). The purpose of this guide is to explain this…Programming5 min read
Published in DataDrivenInvestor·Jan 7, 2019Design Patterns — A quick guide to Observer pattern.Observer pattern is a very commonly used pattern. In fact, it is so common that is being standardized in many programming languages/libraries. In Java, it exists injava.util.Observer (deprecated in Java 9). In Python it as close as apip install pattern-observer. In C++, we can sometimes use boost library, more precisely…Software Development7 min read
Dec 27, 2018Design Patterns — A quick guide to Facade pattern.Facade pattern is often needed when there is a large number of interdependent classes or because parts of the code are unavailable. It is used as a camouflage to cover the complexities of a large system and therefore provides a simple interface to the client. …Programming5 min read
Dec 17, 2018Design Patterns — A quick guide to Singleton pattern.This is another quick-guide to mastering a very commonly used design pattern, the Singleton pattern. Singleton pattern is one of the simplest but most controversial design patterns (with pros and many cons). This is one of the main reasons why it is very common in programming interviews. Singleton pattern is…Design Patterns5 min read
Dec 10, 2018Design Patterns — A quick guide to Abstract Factory.This is a quick-guide to mastering one of the most commonly used design patterns, the Abstract Factory. Even though the coding examples will be in C++ as I am more comfortable with, they can be easily adjusted to any programming language like Java, Python, C#, Javascript and more. Abstract Factory…Programming6 min read
