Technical requirements
To complete the tasks in this chapter, you will need the following:
- A working installation of Crystal
- A text editor configured to use Crystal
Please refer to Chapter 1, An Introduction to Crystal, for instructions on getting Crystal set up and Appendix A, Tooling Setup, for instructions on configuring a text editor for Crystal.
You can find all the source code for this chapter in this book's GitHub repository at https://github.com/PacktPublishing/Crystal-Programming/tree/main/Chapter03.