Arg calculator - Sum numbers

main.go

package main

import (
	"fmt"
	"os"
	"strconv"
)

func main() {
	r := os.Args[1:]       //remove info prefix
	c := len(r)            //len of numbers
	t := 0                 //total sum
	nums := make([]int, c) //create int slice for conversion

	if c > 0 {
		/*for i := 0; i < c; i++ {
			rr, _ := strconv.Atoi(r[i]) //str to int
			t += rr //sum
		}*/ // <-- Old version

		for i, n := range r {
			nums[i], _ = strconv.Atoi(n) //str to int then push int slice
			t += nums[i]                 //sum
		}
		fmt.Println(t) //print result
	} else {
		fmt.Println("Sayi gir la!")
	}
}