Before delving into the Scala design patterns, we have to explain what they actually are, why they exist, and why it is worth being familiar with them.
Software is a broad subject, and there are innumerable examples of things people can do with it. At first glance, most of these things are completely different—games, websites, mobile phone applications, and specialized systems for different industries. There are, however, many similarities in how software is built. Many times, people have to deal with similar issues, no matter the type of software they create. For example, computer games, as well as websites, might need to access a database. And throughout time, by experience, developers learn how structuring their code differs ...
