How to Convert String to Byte Array in Golang

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If you want to convert the byte array to string in Go, use the string() constructor.

Golang String to Byte Array

To convert string to byte array in Go, use the []byte(). It will create a new byte slice that contains the same bytes as the string.

Syntax

[]byte(string)

Example

package main

import (
 "fmt"
)

func main() {
   bt := []byte("kb")
   fmt.Println(bt)
}

Output

[107  98]

You can see that it returns the array of bytes. In addition, it returns the ASCII values of the letter k and b, which is 107 and 98, respectively.

Converting special characters string to bytes

There are so many special characters that can create a string. Let’s covert these characters to bytes.

package main

import (
 "fmt"
)

func main() {
   bt := []byte("{}@#$+-=[]\\|;':\",./<>?")
   fmt.Println(bt)
}

Output

[123 125 64 35 36 43 45 61 91 93 92 124 59 39 58 34 44 46 47 60 62 63]

That’s it for this tutorial.

See also

How to Create a byte array

Golang Atoi()

Golang Itoa()

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