The first question to ask is, what is Scala? Scala is an object-oriented, general purpose programming language, which is also functional. Scala also supports static typing. Scala was designed to give a simple interface for functional programming while addressing the criticism aimed at Java. The code written in Scala is compiled to Java bytecode, which then runs on JVM. So Scala and Java are interoperable. On the other hand, Scala offers some of the best known features of functional programming, including currying, type inference, immutability, and pattern matching. Higher-order types in Scala is also pretty awesome. People who have Java knowledge and have worked on other programming languages, such as PHP and NodeJS, would love to know that Scala has the best