Collections are a set of classes that are used to group multiple elements together. Collections also provide a standard way of processing the elements inside them.
Scala has a very rich Collection API. Scala provides both mutable and immutable Collections.
In this series, we will discuss different Scala Collections and their operators.

Seq, Lists and Vectors
- Creating a List in Scala
- Guide to ListSet in Scala
- Guide to Scala ListMap
- Get a List Item by Index in Scala
- Finding the Index of an Element in a List in Scala
- Split a Sequence in Scala
- Split List by Fixed Number of Elements
- Benefits of Using Vector in Scala
- Find Unique Items in a List in Scala
- Remove Duplicates in a Scala List
- List Concatenation Operators in Scala
- Folding Lists in Scala
- Count the Number of Occurrences of an Element in a List
- Replace Elements in a Scala List by Index
- Create a List With the Same Repeated Element