Ruby will intentionally hide some errors & exceptions from you. Sometimes this can be useful. Like when using the Kernel#loop method with a block, the loop will stop when a StopIteration exception is raised. But other times this can make your debugging sessions a lot harder. Let’s see some examples! Hidden Exception: Comparable Module + … Read more
A prefix tree (also known as a trie) is a data structure that helps you organize a word list & quickly find words that start with a specific prefix. For example, you can find all the words in your dictionary that start with the letters “ca”, such as “cat” or “cape”. Look at this picture: … Read more
If you are using Atom for Ruby development then you probably know that there are plugins (packages in Atom) that can improve your productivity with the editor. But Atom’s package repository has thousands of packages! Which ones should you be using? And on top of that, what are some useful keyboard shortcuts you can use … Read more
If you are looking for a little project to work on & practice your Ruby skills then you are in the right place. Today I want to build a “link shortener” application together with you. What’s a link shortener? I’m sure you have seen them before… These “short links” like: http://t.co/eKBRm2tTUF When you visit this … Read more
New Ruby versions keep improving & Ruby 2.5 is no different. Ruby 2.5 introduces these optimizations: String interpolation will be around 72% faster when a large string is created String#prepend will be around 42% faster if only one argument is given Enumerable#sort_by, Enumerable#min_by & Enumerable#max_by will be about 50% faster Let's see some benchmarks! String … Read more