A bunch of single file apps to test out Go features.
Working with channels, goroutines and waitgroups.
Working on different regular expressions and ways to match with them.
Converting things to and from floats and looking at float maths.
Converting things in and out of JSON objects.
Stuff with maps and maps of maps.
Custom sort routines.
Writing test and benchmark scripts for code that uses goroutines and channels.
Implementing interfaces with structs.
Playing with creating graphs using https://github.com/gonum/plot
Playing with slices and bits of them
Examples of how to import code from other files, both in the same directory and a different directory.