Why loops are needed in Javascript - See It in Action

Why loops are needed

📖 Scenario: Imagine you have a list of fruits and you want to say hello to each fruit one by one. Doing this without loops means writing the same message many times. Loops help us repeat actions easily.

🎯 Goal: You will create a list of fruits, set up a counter, use a loop to greet each fruit, and finally print all greetings.

📋 What You'll Learn

Create an array called fruits with these exact values: "Apple", "Banana", "Cherry"

Create a variable called greetings and set it to an empty array

Use a for loop with variable i to go through fruits

Inside the loop, add a greeting string `Hello, ${fruits[i]}!` to greetings

Print the greetings array

💡 Why This Matters

🌍 Real World

Loops are used in many apps to process lists of items, like showing messages for each user or calculating totals.

💼 Career

Understanding loops is essential for any programming job because they make code efficient and easier to maintain.

1

Create the fruits array

Create an array called fruits with these exact values: "Apple", "Banana", "Cherry"

Javascript

# Create the fruits array
// Your code here

Need a hint?

Use square brackets [] to create an array and separate items with commas.

2

Create an empty greetings array

Create a variable called greetings and set it to an empty array []

Javascript

const fruits = ["Apple", "Banana", "Cherry"];
// Create an empty greetings array
// Your code here

Need a hint?

An empty array is created with [].

3

Use a for loop to add greetings

Use a for loop with variable i to go through fruits. Inside the loop, add a greeting string `Hello, ${fruits[i]}!` to the greetings array using push()

Javascript

const fruits = ["Apple", "Banana", "Cherry"];
const greetings = [];
// Use a for loop to add greetings
// Your code here

Need a hint?

Use fruits.length to get the number of fruits and push() to add items to the array.

4

Print the greetings array

Write console.log(greetings) to print the greetings array

Javascript

const fruits = ["Apple", "Banana", "Cherry"];
const greetings = [];
for (let i = 0; i < fruits.length; i++) {
    greetings.push(`Hello, ${fruits[i]}!`);
}
// Print the greetings array
// Your code here

Need a hint?

Use console.log() to show the array in the console.