Lesson 4: javaScript fundamentals

Now that you've mastered the essentials of HTML and CSS, it’s time to inject some real interactivity into your web pages. Welcome to the world of JavaScript, where your static content becomes dynamic, responsive, and engaging. In this lesson, we'll dive into the fundamentals of JavaScript, learning how it allows you to control the behavior of your web pages, handle user interactions, and manipulate content on the fly. Get ready to add a new layer of functionality to your projects. Let’s get started!

Objective

Learn how to use JavaScript to add interactivity to your web pages, understand key concepts like variables, functions, and DOM manipulation, and start making your site more dynamic and engaging. We’ll also explore event handling to ensure your site responds to user actions in real-time.

What is JavaScript?

JavaScript is a programming language used to create dynamic and interactive effects on web pages. While HTML provides the structure and CSS handles the presentation, JavaScript brings interactivity and makes web pages come alive.

Key Points

• JavaScript is a client-side language, meaning it runs in the user's browser.
• It can respond to user actions, like clicking a button, typing in a form, or hovering over an element.
• JavaScript can manipulate the content, structure, and style of a webpage in real-time.