Write a Golang program to find the sum of digits for a given number

Examples

• num = 125 => 1 + 2 + 5 = 8
• num = 101 => 1 + 0 + 1 = 2
• num = 151 => 1 + 5 + 1 = 7

Approach to solve this problem

Step 1: Define a function that accepts numbers(num); type is int.

Step 2: Start a true loop until num becomes 0 and define res:=0.

Step 3: Find modulo and add to res.

Step 4: Divide num by 10.

Step 5: Return res.

Program

Live Demo

package main import "fmt" func findDigitSum(num int) int {    res := 0    for num>0 {       res += num % 10       num /= 10    }    return res } func main(){    fmt.Println(findDigitSum(168))    fmt.Println(findDigitSum(576))    fmt.Println(findDigitSum(12345)) }

Output

15 18 15