Node.js: Server-Side JavaScript Runtime Environment
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Questions and Answers

What is Node.js primarily used for?

  • Building web servers and APIs (correct)
  • Managing databases
  • Running client-side JavaScript code
  • Creating mobile applications

    • Which JavaScript engine does Node.js use to execute code?

  • V8 engine from Google Chrome (correct)
  • JavaScriptCore from Safari
  • SpiderMonkey from Firefox
  • Chakra from Microsoft Edge

    • What is npm in the context of Node.js?

  • Node Process Manager for handling server processes
  • Node Performance Monitor for optimizing code performance
  • Node Package Manager for installing and managing packages/libraries (correct)
  • Network Protocol Manager for communication with servers

    • What is Node.js known for in terms of I/O model?

    <p>Event-driven, non-blocking I/O model</p> Signup and view all the answers

    What is the primary function of Node.js?

    <p>Running JavaScript code on the server side</p> Signup and view all the answers

    Which JavaScript engine does Node.js use?

    <p>V8 engine</p> Signup and view all the answers

    What is the primary function of Node.js?

    <p>Executing JavaScript code outside the browser for server-side scripting</p> Signup and view all the answers

    What is the key component that enables easy installation and management of packages/libraries in Node.js projects?

    <p>Node.js Package Manager (NPM)</p> Signup and view all the answers

    What is one of Node.js' key strengths?

    <p>Its single-threaded event loop for handling asynchronous operations</p> Signup and view all the answers

    What is the role of npm in Node.js projects?

    <p>Facilitating easy installation and management of packages/libraries</p> Signup and view all the answers

    What makes Node.js suitable for real-time applications like chat applications or online gaming?

    <p>Its non-blocking nature and event-driven architecture</p> Signup and view all the answers

    What contributes to the popularity of Node.js in developing APIs, microservices, and server-side applications?

    <p>Its non-blocking nature and ability to handle concurrent connections</p> Signup and view all the answers

    What does Express.js provide for building web applications and APIs?

    <p>A robust set of features</p> Signup and view all the answers

    How does Node.js empower developers in terms of full-stack development?

    <p>By enabling consistent language across the entire application</p> Signup and view all the answers

    In what domains does Node.js find utility, as mentioned in the text?

    <p>Internet of Things (IoT), cloud computing, and real-time applications</p> Signup and view all the answers

    What may hinder the performance of Node.js in certain scenarios?

    <p>Intensive CPU-bound tasks due to its single-threaded nature</p> Signup and view all the answers

    What contributes to the widespread adoption of Node.js in the software development landscape?

    <p>Its vibrant community, extensive library ecosystem, and ability to leverage JavaScript skills across the entire stack</p> Signup and view all the answers

    Study Notes

    Node.js Overview

    • Node.js is primarily used for building scalable server-side applications, especially for real-time web applications, APIs, and microservices.

    JavaScript Engine

    • Node.js uses V8 JavaScript engine to execute code.

    Package Management

    • npm (Node Package Manager) is the package manager for Node.js, enabling easy installation and management of packages/libraries in Node.js projects.
    • npm is the key component that enables easy installation and management of packages/libraries in Node.js projects.

    I/O Model

    • Node.js is known for its non-blocking, event-driven I/O model, making it suitable for real-time applications like chat applications or online gaming.

    Primary Function

    • The primary function of Node.js is to enable developers to run JavaScript on the server-side, allowing for full-stack development.

    Key Strengths

    • One of Node.js' key strengths is its ability to handle high traffic and multiple concurrent connections efficiently.

    npm Role

    • The role of npm in Node.js projects is to enable easy installation and management of packages/libraries.

    Suitability for Real-Time Applications

    • Node.js' non-blocking, event-driven I/O model makes it suitable for real-time applications like chat applications or online gaming.

    Popularity in API and Server-Side Development

    • Node.js is popular in developing APIs, microservices, and server-side applications due to its ability to handle high traffic and multiple concurrent connections efficiently.

    Web Application and API Development

    • Express.js provides a framework for building web applications and APIs, making it easier to develop and maintain them.

    Full-Stack Development

    • Node.js empowers developers in terms of full-stack development by enabling them to run JavaScript on the server-side.

    Domains of Utility

    • Node.js finds utility in domains such as web development, IoT development, and desktop applications.

    Performance Hinderance

    • Node.js performance may be hindered in scenarios where CPU-intensive tasks are involved.

    Widespread Adoption

    • The widespread adoption of Node.js in the software development landscape is contributed by its ability to handle high traffic and multiple concurrent connections efficiently, making it a popular choice for developing scalable server-side applications.

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    Description

    Test your knowledge about Node.js, a runtime environment for running JavaScript code on the server side. Explore its event-driven, non-blocking I/O model and its common applications in building web servers, APIs, and networked software.

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