How to check if a byte slice contains only ASCII characters in Go using the bytes package?

To check if a byte slice contains only ASCII characters in Go using the bytes package, you can use the bytes.IsASCII() function. Here's an example code to demonstrate this:

package main

import (
	"bytes"
	"fmt"
)

func main() {
	byteSlice := []byte("Hello, World!")
	isASCII := bytes.IsASCII(byteSlice)

	if isASCII {
		fmt.Println("The byte slice contains only ASCII characters.")
	} else {
		fmt.Println("The byte slice contains non-ASCII characters.")
	}
}

In this example, we have a byte slice byteSlice that contains the string "Hello, World!". We use bytes.IsASCII() function to check if the byte slice contains only ASCII characters. If isASCII is true, that means the byte slice contains only ASCII characters; otherwise, it contains non-ASCII characters.