What exactly is node js used for

Question

Is it a web server or a programming language for server-side scripts

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Node js is exactly used for back-end development  but it is popular as a full-stack and front-end solution as well  It is used primarily to build web applications  but it is a very popular choice for building enterprise applications too    Developers like it because of its versatility  agility and performance  It increases productivity and application performance in a significant way  Since Node js has a long-term support  LTS  plan that provides security and stability  it s no wonder that huge enterprises constantly add it to their stacks   It is non-blocking and event-driven  Node js applications uses    Single Threaded Event Loop Model    architecture to handle multiple concurrent clients  These features are key factors to make real time web applications

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Node js is a runtime that compiles and executes javaScript  It can be used to develop  application that runs end-to-end in JavaScript i  e both client side and server side uses javascript code unlike most of todays  application with rich client framework  angularJs  extJs  and RESTful server side APIs

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Directly from the node js tag wiki  make sure watch some of the talk videos linked there to get a better idea     Node js is an event based  asynchronous I O framework that uses Google s V8 JavaScript Engine     Node js - or just Node as it s commonly called - is used for developing applications that make heavy use of the ability to run JavaScript both on the client  as well as on server side and therefore benefit from the re-usability of code and the lack of context switching   It s also possible to use matured JavaScript frameworks like YUI and jQuery for server side DOM manipulation   To ease the development of complex JavaScript further  Node js supports the CommonJS standard that allows for modularized development and the distribution of software in packages via the Node Package Manager   Applications that can be written using Node js include  but are not limited to    Static file servers Web Application frameworks Messaging middle ware Servers for HTML5 multi player games

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Node js is an open source command line tool built for the server side JavaScript code   Node js is a platform built on Chrome s JavaScript runtime for easily building fast  scalable network applications   Node js uses an event-driven  non-blocking I O model that makes it lightweight and efficient  perfect for data-intensive real-time applications that run across distributed devices   The basic philosophy of node js is   Non-blocking I O - every I O call must take a callback  whether it is to retrieve information from disk  network or another process  Built-in support for the most important protocols  HTTP  DNS  TLS  Low-level   Do not remove functionality present at the POSIX layer  For example  support half-closed TCP connections  Stream everything  never force the buffering of data   Credit - Simple Overview About Node js

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Node js is used for easily building fast  scalable network applications

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What can we build with NodeJS    REST APIs and Backend Applications Real-Time services  Chat  Games etc  Blogs  CMS  Social Applications  Utilities and Tools Anything that is not CPU intensive

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Watch this YouTube video      Building a JavaScript-Based Game Engine for the Web

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From Node js website     Node js is a platform built on Chrome s JavaScript runtime for easily   building fast  scalable network applications  Node js uses an   event-driven  non-blocking I O model that makes it lightweight and   efficient  perfect for data-intensive real-time applications that run   across distributed devices    Event-driven means that the server only reacts when an event occurs  This allow us to create high performance  highly scalable     real-time    applications   Finally  this is probably the best article that will get you excited about Node js

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The Developers Survey from Stack Overflow is a good source of information for you to start this research   2017  https   insights stackoverflow com survey 2017 most-popular-technologies  2016  https   insights stackoverflow com survey 2016 technology-most-popular-technologies  Why the Hell Would You Use Node js  https   medium com the-node-js-collection why-the-hell-would-you-use-node-js-4b053b94ab8e  Where Node js really shines is in building fast  scalable network applications  as it   s capable of handling a huge number of simultaneous connections with high throughput  which equates to high scalability  How it works under-the-hood is pretty interesting  Compared to traditional web-serving techniques where each connection  request  spawns a new thread  taking up system RAM and eventually maxing-out at the amount of RAM available  Node js operates on a single-thread  using non-blocking I O calls  allowing it to support tens of thousands of concurrent connections  held in the event loop

[node.js] What exactly is node.js used for?

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