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Challenge: Absolute Value

Explore how to define and implement a Scala function that calculates the absolute value of a given Double. This lesson helps you strengthen your understanding of function creation and application in Scala, supporting your development of effective functional programming skills.

We'll cover the following...

Problem Statement

You need to create a function absolute which computes the absolute value of a given number.

Input

The input of the function is a number x of type Double whose absolute value you want to compute.

Output

The output will be the absolute value of x.

Sample Input

-5

Sample Output

5

Test Yourself

Write your code in the given area. Try the exercise by yourself first, but if you get stuck, the solution has been provided. Good luck!

Scala
def absolute(x: Double): Double = {

  // Write your code here

    

  return -1 // Remove this line after writing your code

}

Let’s go over the solution review in the next lesson.