package main
import (
"fmt"
"strings"
"unicode"
)
func main() {
// rune = one or more characters
fun := func(ch rune) bool {
return unicode.Is(unicode.Greek, ch)
}
str := "Go is a statically typed compiled β high-level α programming language"
unicode_index := strings.IndexFunc(str, fun)
fmt.Println(unicode_index)
}
/*
run:
34
*/