solution.md

Functions 101

Objectives

1. Define a function that gets two integers, adds them and returns the result

   1. Make sure to also write code that executes the function

2. What is the problem with the following code? How to fix it?

package main
        
import "fmt"

func add(x, y int) {
    return x + y
}

func main() {
    fmt.Println("Result:", add(2, 3))
}

Solution

package main

import "fmt"

func add(x, y int) int {
    return x + y
}

func main() {
    fmt.Println(add(2017, 2022))                       
}

2. It returns an integer but at the same time the function doesn't specify any return value so Go expects the function to return nothing.