JavaScript Overview

📘 What is JavaScript?

JavaScript is the core language of the web, used for building interactive and dynamic websites. It runs in browsers and on servers, enabling everything from user interface behavior to backend APIs.

⚡ Key Features

• Dynamic typing and flexible syntax
• Built-in support for functions, objects, and arrays
• Event-driven programming model for UI interaction
• Asynchronous patterns with promises and async/await
• Runs in browsers, Node.js, and many runtimes
• Large ecosystem of libraries and frameworks

⚠️ Considerations

• Loose typing can lead to runtime bugs
• Differences between browser and server environments
• Legacy code and backward compatibility add complexity
• Requires tooling for modern development workflows

🖼️ TypeScript Architecture Diagram

💻 Code Example

function greet(name) {
  return `Hello, ${name}!`;
}

console.log(greet('World'));