#LEARN SCALA HOW TO#

Understand how to apply type classes to solve practical problems across a variety of domains.Learn the key type classes of: Functor, Monoid, Applicative, and Monad.Understand how to express abstractions using type classes.To benefit from this book you should have about a year’s experience with Scala, or equivalent experience with a functional language such as Haskell, O’Caml, or Lisp. Further if you do not have expertise in Java but you know any other programming language like C, C++ or Python, then it will also help in grasping Scala concepts very quickly. The broad ideas are not specific to Cats, but Cats provides an excellent implementation that is beneficial to learn in its own right. Scala Programming is based on Java, so if you are aware of Java syntax, then its pretty easy to learn Scala. We use abstractions from Cats, and we explain the structure of Cats so you can use it without fear in your own code base. The book also serves as an introduction to the Cats library. This means designing systems as small composable units, expressing constraints and interactions via the type system, and using composition to guide the construction of large systems in a way that maintains the original architectural vision. The content of the course is the same as on Coursera: it contains video lectures, quizzes, and auto-graded homeworks.

It’s a good choice for companies that need to train new hires, or for individuals willing to apply for a Scala job. Let's create an object called HelloWorld with a main function. In Scala, the main code construct is an object (versus a class in Java). The main goal of this book is to teach system architecture and design using the techniques of modern functional programming. This course teaches programmers with no experience in Scala everything they need to be ready to work in Scala. Hello, World Scala is somewhat similar to Java.

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