Go Modules

A module is a collection of Go packages stored in a file tree with a go.mod file at its root. The go.mod file defines the module’s module path, which is also the import path used for the root directory, and its dependency requirements, which are the other modules needed for Read more…

Compiler Explorer.

Compiler Explorer is an interactive tool that lets you type code in one window and see the results of its compilation in another window. Using the site should be pretty self-explanatory: by default the left hand pane is the source window and the right hand has the assembly output. https://go.godbolt.org/