The GitHub repository for this book's source code is
https://github.com/l3x/learn-fp-go.
If you store your Go projects in the
~/myprojects directory, then run
cd ~/myprojects; git clone https://github.com/l3x/learn-fp-go.git.
Next, run the
cd command into the first project directory:
cd ~/myprojects/learn-fp-go/1-functional-fundamentals/ch01-pure-fp/01_oop.