Go Error Handling Techniques [closed]

Answer 1

If you want precise control of errors, this may not be the solution, but for me, most of the time, any error is a show stopper.

So, I use functions instead.

func Err(err error) {
    if err!=nil {
        fmt.Println("Oops", err)
        os.Exit(1)
    }
}

fi, err := os.Open("mmm.txt")
Err(err)