How to get a list of values into a flag in Golang?

Question

What is Golang\'s equivalent of the below python commands ?

import argparse
parser = argparse.ArgumentParser(description=\"something\")
parser.add_argument(\         


        

Answer 1

If you have a series of integer values at the end of the command line, this helper function will properly convert them and place them in a slice of ints:

package main

import (
    "flag"
    "fmt"
    "strconv"
)

func GetIntSlice(i *[]string) []int {
    var arr = *i
    ret := []int{}
    for _, str := range arr {
        one_int, _ := strconv.Atoi(str)
        ret = append(ret, one_int)
    }
    return ret
}

func main() {
    flag.Parse()
    tail := flag.Args()
    fmt.Printf("Tail: %T,  %+v\n", tail, tail)
    intSlice := GetIntSlice(&tail)

    fmt.Printf("intSlice: %T,  %+v\n", intSlice, intSlice)

}

mac:demoProject sx$ go run demo2.go 1 2 3 4
Tail: []string,  [1 2 3 4]
intSlice: []int,  [1 2 3 4]