To convert an ASCII to Rune in Go, use the “string()” function. Rune slice is re-grouping of byte slice so that each index is a character.
ASCII is a character encoding standard for representing text-based information with numbers. ASCII is a code that contains 128 characters with integer values from 0 to 127. It can be stored in 8-bit types.
Rune represents a Unicode code point and has the type alias rune for the int32 data type.
Example 1
package main
import (
"fmt"
)
func main() {
ascii := 75 //
rn := string(ascii)
fmt.Printf("%d character is : %s\n", ascii, rn)
}
Output
75 character is : K
We assigned an ascii code point 75, the Rune “K”. To convert a code point to a rune, we used a string() function and passed the ascii code to it. It returns the character code “K” for the ascii code 75.
Example 2
package main
import "fmt"
func main() {
// Example: 1
str := "MOJO"
runes := []rune(str)
var result []int
for i := 0; i < len(runes); i++ {
result = append(result, int(runes[i]))
}
fmt.Println(result)
// Example: 2
s := "MOJO"
for _, r := range s {
fmt.Printf("%c - %d\n", r, r)
}
}
Output
[77 79 74 79]
M - 77
O - 79
J - 74
O - 79
That’s it.

Krunal Lathiya is a seasoned Computer Science expert with over eight years in the tech industry. He boasts deep knowledge in Data Science and Machine Learning. Versed in Python, JavaScript, PHP, R, and Golang. Skilled in frameworks like Angular and React and platforms such as Node.js. His expertise spans both front-end and back-end development. His proficiency in the Python language stands as a testament to his versatility and commitment to the craft.