One of my favorite data structures is the hash table because it’s simple & powerful. You probably have used it before since it’s an efficient way to store key-value pairs. There are some interesting computer science concepts behind the implementation of a hash table that are worth studying, and that’s exactly what we are going … Read more
In this article you’ll learn about the Ruby pack & unpack methods! But why do we need these methods? Working with text is a lot easier than working with binary data. Text allows you to use: regular expressions methods like scan & match gsub But if you want to work with binary data, there is … Read more
Ruby has a built-in tracing system which you can access using the TracePoint class. Some of the things you can trace are method calls, new threads & exceptions. Why would you want to use this? Well, it could be useful if you want to trace the execution of a certain method. You will be able … Read more
It has become a tradition to release new Ruby versions on Christmas. And in this post I want to cover some of the most interesting changes in Ruby 2.4 so you can keep up with the news 🙂 Float#round with keyword If you are using floats in your app I hope you use floor or … Read more
Why would you want to write a port scanner? Writing a port scanner is a great way to learn the basics of the TCP protocol, which is the transport layer used by most internet protocols (including HTTP & SSH). It’s also a good exercise to learn more about how Ruby network programming works. Let’s gets … Read more