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Programming in Kotlin - Part 24: Challenge: | Ray Wenderlich

Practice using Nullables on your own, through a hands-on challenge.


This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4736-programming-in-kotlin/lessons/24

i am still not able to understand this challenge.

You need to do two things:

  1. Create a variable that is a nullable String type
  2. Create a method that takes a nullable string and print it