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Elixir Metaprogramming Basics

Metaprogramming is a powerful, yet pretty complex technique, that means a program can analyze or even modify itself during runtime. Many modern languages support this feature, and Elixir is no exception.  With metaprogramming, you may create new complex macros, dynamically define and defer code execution, which allows you to write . . . Read more

How to Use the Android ListView Component

Introduction Lists of related items are needed for almost every app. An example of this is your Gmail app, which displays a scrollable list of messages. To add this functionality to your app, make use of the Android ListView component. In this tutorial, you will build an app that uses . . . Read more

Building Games With Python 3 and Pygame: Part 2

Overview This is part two of a five-part series of tutorials about making games with Python 3 and Pygame. In part one, I introduced the series, covered the basics of game programming, introduced Pygame, and examined the game architecture.  In this part, we’ll look at the TextObject class used to . . . Read more

Canny Edge Detector Using Python

Edge detection is an essential image analysis technique when someone is interested in recognizing objects by their outlines, and is also considered an essential step in recovering information from images.  For instance, important features like lines and curves can be extracted using edge detection, which are then normally used by . . . Read more

Three Ways to Make Your Swift Code More Readable

The importance of code readability is often underestimated, especially when programming in an environment which emphasizes user interface and user experience. While it’s true that it is extremely important to make a great app, it’s equally important to be able to change it in the future. With unreadable code, it . . . Read more

Building Games With Python 3 and Pygame: Part 1

Overview A lot of developers get into software development because they want to build games. Not everybody can be a professional game developer, but everybody can build their own games for fun and maybe profit. In this five-part series, I’ll show you how to create 2D single-player games using Python . . . Read more

10 Best WordPress Booking & Reservation Plugins

Businesses that rely on bookings and reservations can rely on WordPress to help them meet their online business goals. From haircuts to hotels, and from health salons to consulting firms, these 10 best WordPress booking and reservations plugins from Envato Market are sure to help organizations level up their booking . . . Read more

How to Auto Update WordPress Salts

If you’ve ever viewed the core configuration file (wp-config.php) for a WordPress site then you’ll probably have noticed a section defining eight WordPress constants relating to security keys and salts: AUTH_KEY SECURE_AUTH_KEY LOGGED_IN_KEY NONCE_KEY AUTH_SALT SECURE_AUTH_SALT LOGGED_IN_SALT NONCE_SALT Note: wp-config.php is located in the root folder of your WordPress installation . . . Read more

How to Download Files in Python

Python provides several ways to download files from the internet. This can be done over HTTP using the urllib package or the requests library. This tutorial will discuss how to use these libraries to download files from URLs using Python. REQUESTS The requests library is one of the most popular . . . Read more