What Is Type Inference in Scala

Scala Type Inference makes it optional to specify the type of variable provided that type mismatch is handled. … The Scala compiler can often infer the type of an expression so we don’t have to declare it explicitly.

What is meant by type inference?

Type inference refers to the automatic detection of the type of an expression in a formal language. These include programming languages and mathematical type systems, but also natural languages in some branches of computer science and linguistics.

What is any type in Scala?

Scala Type Hierarchy Any is the supertype of all types, also called the top type. It defines certain universal methods such as equals , hashCode , and toString . Any has two direct subclasses: AnyVal and AnyRef . AnyVal represents value types.