almost all of Golangs core libraries are written in Go and are fully open sourced. This makes jumping from your code to the std liberary super easy. Besides all

almost all of Golangs core libraries are written in Go and are fully open sourced. This makes jumping from your code to the std liberary super easy. Besides all the amazing open sourced projects, the best and easiest way to learn the language is by looking at the Golang source itself.