Scala Tutorial

Scala examples and exercises, in source code.

Setup & Contributing

• Environment Requirements Guide
• Contribution Guide

Sections:

• Standard Scala
• Monix

Standard Scala

Sections:

• Table of Contents

1. Basic IntelliJ Tips

   • Basic IntelliJ

2. Basic Syntax

   • Making A Playground
   • Vars and Vals
   • Types
   • Functions

3. Object Oriented

   • Objects
   • Classes
   • Case Classes
   • Traits
   • .apply( )
   • Companion Objects
   • Generics and Type Classes
   • Enriching Classes

4. Data Structures/Collections

   • Tuples
   • Lists
   • Sets
   • Maps

5. Iterable Operations

   • .map( )
   • .flatMap( )
   • .foreach( )
   • .filter( )
   • .fold( ), .foldLeft( ), .foldRight( )
   • .reduce( ), .reduceLeft( ), .reduceRight( )
   • .collect{ }

6. Other Logic

   • If Else
   • For Loops
   • While Loops
   • Match Case
   • For Comprehensions
   • Try Catch

7. Miscellaneous

   • Options - Some( ), None
   • Eithers - Right( ), Left( )
   • Ranges

8. Concurrent Programming

   • Futures
   • Threads

9. Testing

   • Unit testing

Monix

Sections:

• Table of Contents

1. Tasks

   • Basics
     • Task Basics
   • Builders
     • Task( ) Task.eval( ) Task.delay( )
     • Task.now( ) Task.pure( )
   • Manipulation & Composition
     • .flatMap( ), .map( )
     • For Comprehensions
     • Task.sequence( ), Task.parSequence( ), Task.parSequenceUnordered( )
     • Parallelism - .executeAsync, .executeOn( ), Task.parSequence( )
   • Execution
     • .foreach( )
     • .runToFuture
     • .runAsync( ), .runAsyncAndForget
     • .runSyncUnsafe( )
     • TaskApp

2. Observables

   • Basics
     • Observable Basics
   • Builders
     • Observable.eval( ) Observable.delay( )
     • Observable.now( ) Observable.pure( )
   • Manipulation & Composition
     • .map( ), .flatMap( ), .concatMap( )
     • For Comprehensions
     • Parallelism - .executeAsync, .mapParallelOrdered( ), .mapParallelUnordered( )
     • Multicasting - .replay, .multicast( )