flatMap

The flatMap method is used to apply a function to each element of a collection and then flatten the results into a new collection. It is essentially a combination of the map method followed by the flatten method, but this seemingly very simple property makes it fundamental for Functional Programming.

Visit the following resources to learn more:

• @article@A collection of Scala 'flatMap' examples
• @article@Scala Tutorial - FlatMap Function
• @article@Difference Between map() and flatMap() in Scala