#Scala collections code

The three most commonly used collections are, , and. This framework enables you to work with data in memory at a high level, with the basic building blocks of a program being whole collections, instead of individual elements. Lets start with familiar things and see how Scala collections compare with the JavaScript Array and Object (or Map ). Creating Collections The most common way to create a collection is to use its companion object as a factory. Range : immutable, IndexedSeq List : immutable, LinearSeq LinkedList : mutable, LinearSeq Array : mutable.

#Scala collections code

It provides a common, uniform, and all-encompassing framework for collection types. Scala collections classes: Methods, organized by category creating javabeans importing java code multiple constructors named and default parameters calling methods class casting equivalent of java. ** * goes down the path on the subject to find the rewrite place, does the substitution, and reconstructs the term * on its way up */ private Term buildRHS(Term subject, Substitution substitution, . When we need to pass a Java collection to a Scala function which expects a Scala collection in its arguments, do all the manipulations on the Java collection and just before passing the collection. The collections framework is the heart of the Scala 2.13 standard library.