Is unnamed arguments a thing in Go?

Question

I am writing a parser in Go for Go, and to test it I downloaded a bunch of files from github projects.
In https://github.com/andlabs/ui I bumped into a file containing t

Answer 1

The purpose of unnamed function arguments is for arguments (which are local variables of the function) which are not referred to in the function's code, and therefore do not need a name. An interesting note about anonymous variables is that they are actually used more commonly than you may think. In Go, a function's return value(s) are usually listed as types, but actually they are also local variables of the function which can be named and manipulated.

See this example in the "Effective Go" page on golang.org https://golang.org/doc/effective_go.html#named-results

func ReadFull(r Reader, buf []byte) (n int, err error) {
    for len(buf) > 0 && err == nil {
        var nr int
        nr, err = r.Read(buf)
        n += nr
        buf = buf[nr:]
    }
    return
}