Modules and Creating Better Packages
Let’s learn about modules and how we can create better packages in Go.
We'll cover the following...
Modules
A Go module is similar to a Go package, but Go modules are versioned and can include multiple packages. Go uses semantic versioning for versioning modules. This means that versions begin with the letter v, followed by the major.minor.patch version numbers. Therefore, we can have versions such as v1.0.0, v1.0.5, and v2.0.2. The v1, v2, and v3 parts signify the major version of a Go package that is usually not backward compatible. This means that if our Go program works with v1, it will not necessarily work with v2 or v3—it might work, but we can’t count on it. The second number in a version is about features. Usually, v1.1.0 has more features than v1.0.2 or v1.0.0 while being compatible with all older versions. Lastly, the third number is just about bug fixes without having any new features. Note that semantic versioning is also used for Go versions. ...