go hello world using utf-8 - take care string length / published by https://github.com/dacr/code-examples-manager #88f7ff00-9eb5-4e7f-aadc-9258378a45ab/28f07f5635ddf767aa60e07aedf01abc4f526cb4

hello-utf8.go

/*?sr/bin/true; exec /usr/bin/env nix-shell -p go --run "go run $0" #*/
// summary : go hello world using utf-8 - take care string length
// keywords : go, hello-world, @testable
// publish : gist
// authors : David Crosson
// license : Apache License Version 2.0 (https://www.apache.org/licenses/LICENSE-2.0.txt)
// id : 88f7ff00-9eb5-4e7f-aadc-9258378a45ab
// created-on : 2025-03-27T09:10:35+01:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : nix-shell -p go --run "go run $file"
package main

import (
	"fmt"
	"unicode/utf8"
)

const (
	hello = "Hello, Scripting in Go, 哈囉世界 !" // 30 characters
)

func sayHello() {
	fmt.Println(hello)
	fmt.Println(utf8.RuneCountInString(hello)) // 30
	fmt.Println(len(hello))                    // 38
	fmt.Println(len([]byte(hello)))            // 38
}

func main() {
	sayHello()
}