Scala Reactive Programming

Scala Option

In Scala, Option is used to represent whether a value is present or absent. It is a Type class like scala.Option. It is one of the frequently used Monad types in Scala-based applications.

The main advantages or goal of the Option type are as follows:

• To avoid lots of null checks for complex objects
• To avoid lots of boilerplate code to do null checks
• To avoid NullPointerException
• To write clean, neat, simple, and readable code

In the Scala source code, these three components are defined, as shown here:

sealed abstract class Option[+A] 
case object None extends Option[Nothing] 
final case class Some[+A] extends Option[A] 

Let's take a value T into the Option type such as Option[T]. If a value is present in the Option type, then ...