Introduction
This article is part of the Scala knowledge bits Series.
Periodically, I will publish new exercises so you can slowly build up knowledge about Scala.
It is designed to be done in a very short amount of time and learn a little bit each day, just to create a routine.
This episode will teach you about Scala Methods.
Hope you are going to enjoy it! It is designed for anyone to learn Scala from scratch and slowly learn, one Bit at a time.
After this Bit, I would love to hear your feedback in the comments down below.
Feel free to join the Discord server as well if you would like some help and support from the rest of our community.
What are we learning today?
Today we are going to learn about Scala Methods !
A method in programming language is a bit of code that get executed when called and return a value.
In Scala, the boundary between Values and Methods is very thin and we are going to learn more about all of it as we go into more complex Scala Knowledge Bits.
But, if things goes as planned, today should be simple.
Time to try on the exercise on your own and scroll down for more information when you are done or if you are stuck.
Exercise
Here is an exercise to complete today.
If I did my job well, you should be able to guess by yourself the solution based on what you previously learned and based on the clues.
But if you get stuck, scroll down to get more information.
The goal of the exercise is to replace the ??? by a piece of code so that the exercise compiles and that’s how you win! Good luck!
You can fill the exercise right in here:
Or, if it does not load, go on to Scastie (WAa2MFWwQBW2rIPjVNBgEw).
More information about Scala Methods
In this exercise you will learn (or have learned, if you have already solved the puzzle) about Scala Methods.
I hope you had fun with today’s Scala Knowledge Bit !
One main thing to note, if the method do not take arguments, you do not need the (...), the parentheses are optional.
In practice, you have to be careful when calling the method. Be sure to use parentheses when it was defined with them. And don’t use the parentheses when the method was defined without them.
Feel free to go back to the exercise, modify the code to try out new things and get a better intuition for Scala Methods.
Conclusion
I hope you have learned something new or had fun during this Scala Knowledge Bit.
Please ask questions or post feedback in the comments below.
Feel free to try on the next Scala Knowledege Bit.
If you are curious about the previous Scala knowledge Bits, go check it out! 🙂