ip-to-int.go

import (
	"fmt"
	"regexp"
	"strconv"
)

func ipToInt(value string) (int, error) {
	r := regexp.MustCompile(`[a-z]|:|\.`)        // match chars from a to z, or : (colon), or . (dot)
	v := r.ReplaceAll([]byte(value), []byte("")) // replace all chars matched previously

	return strconv.Atoi(string(v)) // convert to int
}

func main() {
	ip1 := "2001:0db8:0:0:8d3:0:0:0"
	ip2 := "35.192.0.0"

	IpInt1, err := ipToInt(ip1)
	if err != nil {
		panic(err)
	}

	IpInt2, err := ipToInt(ip2)
	if err != nil {
		panic(err)
	}

	fmt.Println(IpInt1)
	fmt.Println(IpInt2)
}

ip-to-int.js

function ipToInt(value) {
  return Number(value.replace(/[a-z]|:|\./g, ""))
}

const ip1 = "2001:0db8:0:0:8d3:0:0:0"
const ip2 = "35.192.0.0"

console.log("IPv6", ipToInt(ip1))
console.log("IPv4", ipToInt(ip2))