Learn-Coding/node_tutorial copy.html at main · mithleshprasad/Learn-Coding · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
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    <title>Node.js Tutorial</title>
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</head>
<body>
    <!-- Header -->
    <header>
        <div class="logo">Learn Coding</div>
        <nav>
            <ul class="menu">
                <li><a href="index.html">Home</a></li>
                <li><a href="javascript_tutorial.html">JavaScript Tutorial</a></li>
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        <h1>📌 Node.js Tutorial - Questions & Answers</h1>
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            ["What is Node.js?", "Node.js is an **open-source, cross-platform runtime** that allows JavaScript to run on the server-side."],
            ["How to install Node.js?", "Download the latest version from the official website and follow the installation steps."],
            ["What is npm in Node.js?", "npm (Node Package Manager) is used to manage JavaScript packages."],
            ["How to create a basic server in Node.js?", "Use the **http module** to create a simple server."],
            ["What is Express.js?", "Express.js is a **fast and minimal web framework** for Node.js."],
            ["What is Middleware in Express?", "Middleware functions **process requests** before sending a response."],
            ["How to handle JSON data in Node.js?", "Use `express.json()` to parse JSON requests in Express."],
            ["How to connect Node.js with MongoDB?", "Use **Mongoose** to connect with MongoDB."],
            ["How to create a REST API in Node.js?", "Use **Express.js** to create a REST API endpoint."],
            ["How to use Environment Variables in Node.js?", "Use **dotenv** package to manage environment variables safely."],
            ["What is Asynchronous Programming in Node.js?", "Node.js uses an event-driven, non-blocking I/O model."],
            ["How to use Async/Await in Node.js?", "Async/Await simplifies asynchronous code handling."],
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  ["Why use WebSocket?", "WebSockets reduce network latency, improve performance, and are ideal for real-time applications like chat, gaming, and live updates."],
  ["How to implement WebSocket in Node.js?", "You can use the 'ws' library in Node.js to create a WebSocket server and handle real-time communication."],
  ["Example WebSocket setup?", "Install 'ws' with 'npm install ws', then create a WebSocket server using the WebSocket package in Node.js."],
  ["How does the WebSocket client communicate?", "A WebSocket client connects using 'new WebSocket(url)', listens for events like 'open', 'message', and 'close', and sends messages using 'socket.send(data)'."]
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            ["What is Event Emitter in Node.js?", "EventEmitter allows event-driven programming in Node.js."],
            ["How to Handle Errors in Node.js?", "Use try-catch or error handlers for better error management."],
            ["What is Nodemon and Why Use It?", "Nodemon auto-restarts the server when code changes."],
            ["What is the Difference Between Process.nextTick() and setImmediate()?", "Process.nextTick() runs before the next event loop phase, while setImmediate() executes in the next cycle."],
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