Convert string to bytes in golang

Strings in golang are immutables slices of bytes that are encoded in UTF-8 format. When can convert the string to bytes slice, the underlying data is the same but it will be represented in the bytes slices which can be modified unlike the string

Learn more about string and bytes in this official blog post - https://go.dev/blog/strings

How to convert string to bytes slice in golang

You can use the []byte() function to convert the string to bytes slice

package main

import "fmt"

func main() {
	strToConvert := "String data"
	bytesSlice := []byte(strToConvert)
	fmt.Println(bytesSlice)
}

Output:

[83 116 114 105 110 103 32 100 97 116 97]

How to convert bytes slice to string in golang

You can convert the bytes slice to string by passing the bytes slice to string method

package main

import "fmt"

func main() {
	bytesSlice := []byte{'h', 'e', 'l', 'l', 'o'}
	str := string(bytesSlice)
	fmt.Println(str)
}

Output:

hello