Convert string to integer type in Go?

Question

I'm trying to convert a string returned from flag.Arg(n) to an int. What is the idiomatic way to do this in Go?

Answer 1

For example,

package main  import (     "flag"     "fmt"     "os"     "strconv" )  func main() {     flag.Parse()     s := flag.Arg(0)     // string to int     i, err := strconv.Atoi(s)     if err != nil {         // handle error         fmt.Println(err)         os.Exit(2)     }     fmt.Println(s, i) }