Slice creation in Go - Mini Project: Build & Apply

Slice creation

📖 Scenario: You are organizing a small fruit basket for a friend. You want to keep track of the fruits you have using a list-like structure called a slice in Go.

🎯 Goal: Create a slice of fruits, add a few fruit names, and then display the list.

📋 What You'll Learn

Create a slice of strings called fruits with the exact fruits: "Apple", "Banana", "Cherry"

Create a variable called extraFruit and set it to "Mango"

Add extraFruit to the fruits slice using the append function

Print the fruits slice to show all fruits

💡 Why This Matters

🌍 Real World

Slices are used in Go to store lists of items like names, numbers, or objects. This is common in apps that manage collections such as shopping lists, user data, or inventory.

💼 Career

Understanding slices is essential for Go programming jobs because they are a fundamental way to handle groups of data efficiently.

1

Create the initial slice of fruits

Create a slice of strings called fruits with these exact values: "Apple", "Banana", "Cherry"

Go

package main

import "fmt"

func main() {
    // Create the slice fruits here
    // Your code here
}

Hint

Use fruits := []string{} to create a slice with the fruit names inside curly braces.

2

Add an extra fruit variable

Create a variable called extraFruit and set it to the string "Mango"

Go

package main

import "fmt"

func main() {
    fruits := []string{"Apple", "Banana", "Cherry"}
    // Create extraFruit variable here
    // Your code here
}

Hint

Use extraFruit := "Mango" to create the variable.

3

Add the extra fruit to the slice

Use the append function to add extraFruit to the fruits slice and update fruits with the result

Go

package main

import "fmt"

func main() {
    fruits := []string{"Apple", "Banana", "Cherry"}
    extraFruit := "Mango"
    // Append extraFruit to fruits slice
    // Your code here
}

Hint

Use fruits = append(fruits, extraFruit) to add the new fruit.

4

Print the fruits slice

Write a fmt.Println statement to print the fruits slice

Go

package main

import "fmt"

func main() {
    fruits := []string{"Apple", "Banana", "Cherry"}
    extraFruit := "Mango"
    fruits = append(fruits, extraFruit)
    // Print the fruits slice
    // Your code here
}

Hint

Use fmt.Println(fruits) to display the slice contents.