Code Review: functions, parameters, and return values

A function shouldn’t have a lot of parameters. Make sure your function isn’t doing too much.

Outside of fmt.Println and other well-known functions, use _ to explicitly mark ignored return values.

Never use a blank (naked) return in a function that returns values. It forces the reader to scan the entire function to figure out what value is being returned.

Watch out for shadowing named return values. Confirm that you’re assigning to the return variable, not accidentally creating a new one with :=.