Learn Go with Tests

Learn Go by writing tests first. Every chapter is a red-green-refactor cycle, and by the end you have covered concurrency, generics, context, and a couple of real applications.

It works because the test comes before the explanation. You feel the problem, then the language feature lands as a solution rather than a fact to memorise.

Best free Go resource I know for someone who can already program.

github.com/quii/learn-go-with-tests

See also:

• 100 Go Mistakes
• Go's synctest - deterministic concurrency tests