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What is node.js

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Rajat Saxena

Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js can be used to write web servers, real-time chat servers, and utility programs like file management scripts. It is best for asynchronous applications and not for CPU intensive tasks like stock calculations. Under the hood, Node.js uses an event loop to handle asynchronous, single-threaded, event-driven programming.

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What is Node.js? Beginner’s Guide
Intro Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. - Source: https://nodejs.org/
Chrome, V8 and Node.js V8 is a JavaScript Engine which runs inside chrome Node.js is the V8 taken out of Chrome and running on your OS Nodejs can listen to network traffic on your computer and can interact with your computers filesystem.
Dive in What can you do with Node.js? - Write web enabled applications like web servers, real-time chat servers etc. - Write utility programs like moving files around the OS, live reloading scripts etc. Where not to use Node.js? - CPU intensive applications like stock trading calculations etc. Basically, you can do everything you can with PHP or Ruby on Rails or Python, with Node.js
Asynchronous, Single Threaded & Event Driven
Next up... Node.js Event Loop
Thanks! Contact us: Rayn Studios Full Stack & Android Development Gurgaon, India rajat@raynstudios.in http://raynstudios.com

More Related Content

What is node.js

  • 2. Intro Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. - Source: https://nodejs.org/
  • 3. Chrome, V8 and Node.js V8 is a JavaScript Engine which runs inside chrome Node.js is the V8 taken out of Chrome and running on your OS Nodejs can listen to network traffic on your computer and can interact with your computers filesystem.
  • 4. Dive in What can you do with Node.js? - Write web enabled applications like web servers, real-time chat servers etc. - Write utility programs like moving files around the OS, live reloading scripts etc. Where not to use Node.js? - CPU intensive applications like stock trading calculations etc. Basically, you can do everything you can with PHP or Ruby on Rails or Python, with Node.js
  • 7. Thanks! Contact us: Rayn Studios Full Stack & Android Development Gurgaon, India rajat@raynstudios.in http://raynstudios.com

Editor's Notes

  1. Talk about chrome and v8