Methods To Functions
In Scala, functions and methods are different. Functions are first-class citizens, whereas methods are part of classes or objects.
Below is the Scala program to use the underscore notation to turn a method into a function.
class Calculator {
def add(a: Int, b: Int): Int = a + b
}
val calculator = new Calculator
val addFunction: (Int, Int) => Int = calculator.add _
println(addFunction(3, 5))
Output:
What is Lifting in Scala?
Scala is a programming language that is expressive and effective. It permits builders to produce code that is both elegant and succinct. Lifting is one such belonging that is vital to useful programming paradigms. Functions may fit easily on values interior containers, such as Option, List, Future, and many others., thanks to lifting, which gets rid of the need to manage the structure of the container manually. This article will explain the idea of lifting in Scala, spotlight its importance, and provide utilization examples.
Table of Content
- Partial Functions to Functions
- Methods To Functions
- Pure Functions to Effectful Functions: Functors
- Monad to Monad Transformers
- Conclusion