Scala

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Scala combines object-oriented and functional programming in one concise, high-level language. Scala's static types help avoid bugs in complex applications, and its JVM and JavaScript runtimes let you build high-performance systems with easy access to huge ecosystems of libraries.
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Track mentors

10 Mentors

Our mentors are friendly, experienced Scala developers who will help teach you new techniques and tricks.
Track students

3,667 Students

Join thousands of students who have enjoyed learning and improving their skills by taking this track.
Track exercises

88 Exercises

Hundreds of hours have gone into making these exercises fun, useful, and challenging to help you enjoy learning.

About Scala

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

Scala combines object-oriented and functional programming in one concise, high-level language. Scala's static types help avoid bugs in complex applications, and its JVM and JavaScript runtimes let you build high-performance systems with easy access to huge ecosystems of libraries.

  • Features
    • JVM Interoperability - Scala runs on the JVM, so Java and Scala stacks can be mixed for seamless integration.
    • Type Inference - Scala is statically typed. However, Scala provides type inference to ease the burden of an advanced type system.
    • Object Oriented - Scala is a pure object-oriented language in the sense that every value is an object. Data types and behaviors of objects are described by classes and traits. Class abstractions are extended by subclassing and by a flexible mixin-based composition mechanism to avoid the problems of multiple inheritance.
    • Functional - Scala is also a functional language in the sense that every function is a value. Scala provides a lightweight syntax for defining anonymous functions, it supports higher-order functions, it allows functions to be nested, and supports currying. Scala’s case classes and its built-in support for pattern matching model algebraic types used in many functional programming languages. Singleton objects provide a convenient way to group functions that aren’t members of a class.
    • Concurrency & Distribution - Use data-parallel operations on collections, use actors for concurrency and distribution, or futures for asynchronous programming.
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Exercism is a great website

Exercism is a great website where I was able to have some very interesting challenges.

Relaxed. Encouraging. Supportive.

Meet the Scala Track mentors

Once you join the Scala language track, you will receive support and feedback from our team of mentors. Here are the bios of a few of the mentors of this track.

Avatar of Rutger Claes

Rutger Claes https://github.com/rutgerclaes

I really like working in Scala. It allows me to come up with elegant, functional code that is also concise and type safe.
Avatar of Jacqueline Outka

Jacqueline Outka https://github.com/outkaj

I find Scala to be both a beautiful and useable language. I like that you can use clear and concise functional paradigms, while still enjoying the benefits of object orientation and JVM interoperability.
Avatar of Alexandre Langlais

Alexandre Langlais French blog

Scala is a great solution for pure functional programming in today's industry.
Avatar of Shankar Shastri

Shankar Shastri GitHub Profile

Lover Of Pure Functional Programming.
Avatar of Thayne McCombs

Thayne McCombs https://github.com/tmccombs

I've worked on scala profesionally for over five years. I like it's pragmatic approach to functional programming on the robust JVM platform
Avatar of Adrian King Legaspi

Adrian King Legaspi https://github.com/akilegaspi

Generally a Purely Functional Programming advocate and Professional Software Engineer in Scala/Haskell
Fun. Challenging. Interesting

Community-sourced Scala exercises

These are a few of the 88 exercises on the Scala track. You can see all the exercises here.

Simple Linked List
medium
classes
generics
lists
transforming
Flatten Array
easy
lists
pattern matching
recursion
Custom Set
medium
generics
lists
sets
Run Length Encoding
medium
algorithms
strings
transforming
Binary Search Tree
medium
generics
lists
searching
trees
Zebra Puzzle
hard
logic
Passionate. Knowledgeable. Creative.

Meet the Scala Track maintainers

The Scala Maintainers are the brains behind the Scala Track. They spend their spare time creating interesting and challenging exercises that we can all learn from. We are incredibly grateful for their hard work. Here are the bios of a few of the maintainers of this track.

Avatar of Erik Schierboom

Erik Schierboom My blog

This maintainer has not added their bio yet.
Avatar of Ric Emery

Ric Emery

This maintainer has not added their bio yet.

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