Go Hard 1

🧠 Code Challenge

package main

import (
	"errors"
	"fmt"
	"strings"
)

type Task struct {
	Title       string
	Description string
	Done        bool
}

type TaskList struct {
	Tasks []Task
}

func (tl *TaskList) AddTask(title, description string) error {
	if strings.TrimSpace(title) == "" {
		return errors.New("task title cannot be empty")
	}
	task := Task{
		Title:       title,
		Description: description,
		Done:        false,
	}
	tl.Tasks = append(tl.Tasks, task)
	return nil
}

func (tl *TaskList) CompleteTask(index int) error {
	if index < 0 || index >= len(tl.Tasks) {
		return errors.New("invalid task index")
	}
	tl.Tasks[index].Done = true
	return nil
}

func (tl *TaskList) PrintTasks() {
	for i, task := range tl.Tasks {
		status := "Pending"
		if task.Done {
			status = "Completed"
		}
		fmt.Printf("%d. [%s] %s - %s\n", i+1, status, task.Title, task.Description)
	}
}

func main() {
	myTasks := TaskList{}

	_ = myTasks.AddTask("Write blog post", "About Go structs and methods")
	_ = myTasks.AddTask("Fix bug #404", "Resolve panic in login flow")

	_ = myTasks.CompleteTask(0)

	myTasks.PrintTasks()
}

  

Explain what this function does. Speak clearly and use keywords.