GOLANG Free Section Starter Challenge 25 min

3. Multiple Return Values & Idiomatic Error Handling

Overview: Return results and errors explicitly: `func fn() (int, error)`.

Concept & Syntax Guide

Go does not use exceptions. Instead, functions return `(result, error)`. Idiomatic Go checks `if err != nil` immediately.

Hands-On Practice Exercise

Implement an Order Validator Function

Write a function `func validateOrder(price int) (string, bool)` that returns ("Valid", true) if price > 0.

Target Output: Status: Order Approved (OK: true)

Need a hint? Click here to reveal

Hint: Check syntax carefully and make sure your code contains: Status: Order Approved (OK: true)

GOLANG Code Editor

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package main

import "fmt"

func validateOrder(price int) (string, bool) {
    if price > 0 {
        return "Order Approved", true
    }
    return "Invalid Price", false
}

func main() {
    msg, ok := validateOrder(1499)
    fmt.Printf("Status: %s (OK: %t)\n", msg, ok)
}