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About Scala

object HelloWorld {
  def hello() = "Hello, World!"
}

Key Features of Scala


Scala

Modern

Scala is relatively young, and design decisions are aimed to address criticisms of Java.

Multi-paradigm

Scala combines object-oriented and functional programming in one concise, high-level language.

Statically typed

Scala is statically typed and supports type inference, catching errors early.

Lazy computation

Scala evaluates expressions only when required, this increases performance.

Immutability

Scala uses an immutability concept. Each declared variable is immutable by default.

Widely-used

Scala is being used by some of the world's tech giants.

Get mentored the Scala way

Every language has its own way of doing things. Scala is no different. Our mentors will help you learn to think like a Scala developer and how to write idiomatic code in Scala. Once you've solved an exercise, submit it to our volunteer team, and they'll give you hints, ideas, and feedback on how to make it feel more like what you'd normally see in Scala - they'll help you discover the things you don't know that you don't know.

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Community-sourced Scala exercises

The Scala track on Exercism has 95 exercises to help you write better code. Discover new exercises as you progress and get engrossed in learning new concepts and improving the way you currently write.

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Scala

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