How to convert a string to a byte slice in Go?

To convert a string to a byte slice in Go, you can use the []byte() type conversion. Here's an example:

package main

import (
	"fmt"
)

func main() {
	str := "Hello, world!"
	bytes := []byte(str)
	fmt.Printf("%v\n", bytes) // [72 101 108 108 111 44 32 119 111 114 108 100 33]
}

In this example, the string "Hello, world!" is converted to a byte slice using []byte(str). The resulting byte slice [72 101 108 108 111 44 32 119 111 114 108 100 33] represents the ASCII values of each character in the string.