Creating packages
Until now, the chapter has covered the rudimentary concepts of the Go package; now it is time to dive deeper and look at the creation of Go code contained in packages. One of the main purposes of a Go package is to abstract out and aggregate common logic into sharable code units. Earlier in the chapter, it was mentioned that a group of Go source files in a directory is considered to be a package. While this is technically true, there is more to the concept of a Go package than just shoving a bunch of files in a directory.
To help illustrate the creation of our first packages, we will enlist the use of example source code found in github.com/vladimirvivien/learning-go/ch06. The code in that directory defines a set of functions ...
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