Why JavaScript is widely used - See It in Action

Why JavaScript is widely used

📖 Scenario: Imagine you want to build a simple webpage that shows why JavaScript is popular. You will create a small program that lists reasons why JavaScript is widely used.

🎯 Goal: Build a JavaScript program that stores reasons why JavaScript is widely used, then displays them one by one.

📋 What You'll Learn

Create an array called reasons with 3 exact reasons as strings

Create a variable called count and set it to 0

Use a for loop with variable i to go through reasons

Print each reason using console.log

💡 Why This Matters

🌍 Real World

JavaScript is used everywhere on the web to make websites interactive and dynamic.

💼 Career

Knowing how to work with arrays and loops in JavaScript is essential for web development jobs.

1

Create the reasons array

Create an array called reasons with these exact strings: 'Runs in browsers', 'Easy to learn', 'Large community'

Javascript

// Create the array called reasons with 3 strings
// Your code here

Need a hint?

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

2

Add a counter variable

Create a variable called count and set it to 0

Javascript

const reasons = ['Runs in browsers', 'Easy to learn', 'Large community'];
// Create count variable and set to 0
// Your code here

Need a hint?

Use let to create a variable that can change later.

3

Loop through the reasons

Use a for loop with variable i to go through reasons array

Javascript

const reasons = ['Runs in browsers', 'Easy to learn', 'Large community'];
let count = 0;
// Use for loop with i to go through reasons
// Your code here

Need a hint?

Use reasons.length to get the number of items in the array.

4

Print each reason

Inside the for loop, use console.log to print each reason from reasons using i as the index

Javascript

const reasons = ['Runs in browsers', 'Easy to learn', 'Large community'];
let count = 0;
for (let i = 0; i < reasons.length; i++) {
    count++;
    // Print the reason at index i
    // Your code here
}

Need a hint?

Use console.log(reasons[i]) to print each reason.