Mastering Go - Second Edition

What is a rune?

A rune is an int32 value, and therefore a Go type, that is used for representing a Unicode code point. A Unicode code point, or code position, is a numerical value that is usually used for representing single Unicode characters; however, it can also have alternative meanings, such as providing formatting information.

NOTE: You can consider a string as a collection of runes.

A rune literal is a character in single quotes. You may also consider a rune literal as a rune constant. Behind the scenes, a rune literal is associated with a Unicode code point.

Runes are going to be illustrated in runes.go, which is going to be presented in three parts. The first part of runes.go follows:

package main 
 
import ( 
    "fmt" 
) 

The second part ...