Introduction to JavaScript

JavaScript is a versatile programming language used to make web pages interactive. It is one of the core technologies of the web, alongside HTML and CSS.

Why Learn JavaScript?

JavaScript is essential for modern web development. It allows you to:

Create dynamic and interactive web pages.
Build web applications, games, and even server-side applications.
Work with popular frameworks like React, Angular, and Vue.

Fun Fact

JavaScript was created in just 10 days in 1995 by Brendan Eich and has since become one of the most widely used programming languages in the world.

What You Need to Get Started

To start coding in JavaScript, you only need:

A web browser (e.g., Chrome, Firefox, or Edge).
A text editor (e.g., Visual Studio Code, Notepad++, or any editor of your choice).

Where to Test JavaScript Code

You can test JavaScript code in two ways:

Browser Console: Open your browser, press F12 (or Ctrl + Shift + J in Chrome), and go to the “Console” tab. You can type JavaScript code directly there.
HTML File: Create an HTML file and include JavaScript code inside <script> tags. Open the file in your browser to see the results.

Example of testing in the browser console:

console.log("Hello, JavaScript!");

Example of testing with an HTML file:

<!DOCTYPE html>
<html>
<head>
    <title>JavaScript Test</title>
</head>
<body>
    <script>
        console.log("Hello, JavaScript!");
    </script>
</body>
</html>

Next: Variables →

Introduction to JavaScript