Equip learners with a foundational understanding of JavaScript to add dynamic behavior and interactive elements to their websites.

JavaScript (JS) is a lightweight, interpreted, or just-in-time compiled programming language primarily used for creating dynamic and interactive content on web pages. It is a core technology of the World Wide Web, alongside HTML and CSS, and is supported by all modern web browsers.

1. Client-Side Scripting

   • Runs directly in the browser to create interactive and dynamic web experiences, such as form validation, animations, and interactive maps.

2. Versatile and Cross-Platform

   • JavaScript is platform-independent and works across operating systems and devices.

3. Event-Driven

   • JavaScript reacts to user actions (e.g., clicks, typing) and browser events (e.g., loading a page).

4. Interpreted Language

   • Executes line-by-line in the browser without the need for compilation.

5. Integration with HTML and CSS

   • Works seamlessly with HTML and CSS to provide functionality and styling to websites.

6. Server-Side Capability

   • With tools like Node.js, JavaScript can also be used on servers, making it a full-stack development language.

• To create interactive web pages.
• To add dynamic behavior like live updates, sliders, and modal windows.
• To build web and mobile applications using frameworks like React, Angular, or Vue.js.
• To enable real-time communication in applications like chat apps using WebSockets.
• To develop server-side applications with Node.js.

JavaScript runs in a browser’s JavaScript engine, such as:

• Google Chrome: V8 Engine
• Firefox: SpiderMonkey
• Safari: JavaScriptCore
• Edge: Chakra (or V8 in Chromium-based Edge)

When a web page loads, the browser interprets and executes the JavaScript code to add interactivity.