About node. js

• node. JS Concepts
  • is a JavaScript run environment (runtime)
  • is actually encapsulating the Google V8 engine.
  • V8 engine executes JavaScript very fast and performs very well
  • node. JS is optimized for a number of special use cases, providing an alternative API that allows V8 to run better in a non-browser environment
  • node. JS is a platform built on the chrome JavaScript runtime to easily build responsive, easy-to-scale Web applications
• node. JS Basic Technology
  • Lightweight and efficient with event-driven, non-blocking I/O models
  • Ideal for running data-intensive real-time applications on distributed devices
  • Single thread: node. js still handles parallel tasks without increasing the number of external threads
    • Implementing parallel operations through event polling
    • So take advantage of this when you use it: avoid blocking operations and use non-blocking operations
• node. JS History
  • 2008.09.02,V8 engine released with Google Chrome browser
  • 2009.02,ryan Dahl on the blog to be prepared to create a lightweight Web server based on V8 and provide a set of libraries
  • 2009.05,ryan Dahl released the original version of the node. js package on GitHub, and then someone started developing the app with node. js
  • At the end of 2010, node. JS received cloud service joyent funding
  • 2011.07,node.js release Windows version with support from Microsoft
• node. JS Features
  • Module
    • Node. JS uses module modules to divide different functions
    • The modules module is similar to a class library in C + +
    • HTTP modules include many functions related to HTTP functionality, and it is also easy to create HTTP and TCP/UDP servers

About node. js