Golang example variadic function

vf.go

package main

import (
	"fmt"
	"strconv"
)

type example struct {
	container []byte
}

func (e *example) toByte(incoming ...string) {
	for _, item := range incoming {
		val, _ := strconv.Atoi(item)
		if val < 256 {
			e.container = append(e.container, uint8(val))
		}
	}
}

func main() {
	ex := &example{}
	ex.toByte([]string{"18", "89", "255", "320", "43"}...)
	for _, byteVal := range ex.container {
		fmt.Printf("%X\n", byteVal)
	}
}