Golang string to byte array

In Golang, converting a string to a byte array is straightforward and efficient, as strings and byte slices ([]byte) are closely related. This conversion is commonly used when handling data in binary format, file I/O, or network operations.

The simplest way to convert a string to a byte array is by casting:

byteArray := []byte("your string here")

code example

package main

import "fmt"

func main() {
	byteArray := []byte("your string here")
	fmt.Println("s:", byteArray)
}

This converts the string into a byte slice, where each element represents a character in UTF-8 encoding. This process is fast since it doesn’t involve copying data; instead, it references the same memory. Converting from []byte back to string is just as easy: string(byteArray).