Learning Functional Programming in Go

Generics code generation tool

How can we not write all that repetitive code and not take a performance hit, nor lose any type safety of our strongly-typed language?

Let's look at using Go tooling to generate the boilerplate code for us. We'll use it to replace interface{} in our code with <T>. Here, <T> represents any type that works in the context in which it is found. 

Since we'll be using real types, we'll get compile-time type safety.