Lessons
Scala · Easy
Scala · Easy. Ten lessons. Open-book quizzes. Lesson 1 free.
10 lessons · The Host · Lesson 1 free
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Lesson 1 · On the house
Traits
trait, extends, with, abstract members, mixins.
Lesson 2
Abstract classes
abstract class, abstract members, vs traits.
Lesson 3
Companion objects
Same-name object, factories, private sharing.
Lesson 4
Apply and factories
def apply, User(…), hiding new.
Lesson 5
Option
Some/None, map, getOrElse, match on Option.
Lesson 6
map, flatMap, for-comprehensions
Functor/monad style on Option and List.
Lesson 7
Collections deeper
Vector, Set, filter, foldLeft, toList.
Lesson 8
Pattern matching deeper
Guards, sealed traits, exhaustiveness.
Lesson 9
Generics / type parameters
[A], Option[A], List[A], variance intro.
Lesson 10
Easy capstone
Traits + Option + collections + match composed.
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Certificate
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