Golang : How to convert character to ASCII and back

Problem:

ASCII or American Standard Code for Information Interchange is used to represent characters and device control in computers. How to convert a character to ASCII and back to a character?

Solution:

To get the ASCII value of a character, simply type cast the character with int() function and make sure the character is a rune instead of type string. To revert it back or to convert integer ASCII value to a character, type cast the integer with string() function.

Here you go!

 package main

 import (
 "fmt"
 )

 func main() {

 // character to ASCII
 char := 'a' // rune, not string
 ascii := int(char)
 fmt.Println(string(char), " : ", ascii)

 // ASCII to character

 asciiNum := 65  // Uppercase A
 character := string(asciiNum)
 fmt.Println(asciiNum, " : ", character)

 }

Output:

a : 97

65 : A

Reference:

https://en.wikipedia.org/wiki/ASCII