Advent of Code, organised by Eric Wastl is a yearly event consisting of a series of small programming puzzles. The puzzles are released daily from December 1st to December 25th. The goal is to improve ...

A declaration introduces names and assigns them types. It can form part of a class definition or of a refinement in a compound type. A definition introduces names that denote terms or types. It can ...

Copyright (c) 2011- Lightbend, Inc. Scala is licensed under the Apache License, Version 2.0 (the “License”). Unless required by applicable law or agreed to in ...

A template defines the type signature, behavior and initial state of a trait or class of objects or of a single object. Templates form part of instance creation expressions, class definitions, and ...

A template defines the type signature, behavior and initial state of a trait or class of objects or of a single object. Templates form part of instance creation ...

A pattern is built from constants, constructors, variables and type tests. Pattern matching tests whether a given value (or sequence of values) has the shape defined by a pattern, and, if it does, ...

Scala Ambassadors are independent community members who are known and have been recognized for their contributions to the community. They are active and welcoming individuals, happy to help newcomers, ...

Like Scala, Java also has a rich collections library. There are many similarities between the two. For instance, both libraries know iterators, iterables, sets, maps, and sequences. But there are also ...

Scala programs are written using the Unicode Basic Multilingual Plane (BMP) character set; Unicode supplementary characters are not presently supported. This chapter defines the two modes of Scala's ...

Scala collections systematically distinguish between mutable and immutable collections. A mutable collection can be updated or extended in place. This means you can change, add, or remove elements of ...