Why loop control is required in Javascript - See It in Action

Why loop control is required

📖 Scenario: Imagine you are organizing a small party and you want to invite friends one by one. You have a list of friends, but you want to stop inviting once you reach a certain number of guests to avoid overcrowding.

🎯 Goal: You will create a program that loops through a list of friends and stops inviting once the guest limit is reached. This will show why controlling loops is important to avoid inviting too many people.

📋 What You'll Learn

Create an array called friends with exactly these names: 'Alice', 'Bob', 'Charlie', 'David', 'Eva'

Create a variable called guestLimit and set it to 3

Use a for loop with variable i to go through friends

Use break to stop the loop when the number of invited guests reaches guestLimit

Print each invited friend's name with console.log

💡 Why This Matters

🌍 Real World

Loop control helps in real life when you want to stop a repeated task early, like stopping invitations when the room is full.

💼 Career

Understanding loop control is important for writing efficient programs that do not waste time or resources.

1

Create the list of friends

Create an array called friends with these exact names: 'Alice', 'Bob', 'Charlie', 'David', 'Eva'

Javascript

// Create the array friends with the given names
// Your code here

Need a hint?

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

2

Set the guest limit

Create a variable called guestLimit and set it to 3

Javascript

const friends = ['Alice', 'Bob', 'Charlie', 'David', 'Eva'];
// Create guestLimit and set it to 3
// Your code here

Need a hint?

Use const to create a variable that does not change.

3

Loop through friends and stop at guest limit

Use a for loop with variable i to go through friends. Use break to stop the loop when i reaches guestLimit.

Javascript

const friends = ['Alice', 'Bob', 'Charlie', 'David', 'Eva'];
const guestLimit = 3;
// Loop through friends and stop when i equals guestLimit
// Your code here

Need a hint?

Use break inside the loop to stop it when the limit is reached.

4

Print invited friends

Inside the loop, use console.log to print the name of each invited friend using friends[i].

Javascript

const friends = ['Alice', 'Bob', 'Charlie', 'David', 'Eva'];
const guestLimit = 3;
for (let i = 0; i < friends.length; i++) {
    if (i === guestLimit) {
        break;
    }
    // Print the invited friend's name
    // Your code here
}

Need a hint?

Use console.log(friends[i]) to print each invited friend.