Node.js Summarization

1. What is node js

-Node.js is a javascript runtime built on Chrome's V8 javascript engine




- Js on server

global
process

- Js on the browser( Chrome )


window 
document



2. Why should use node js

- Node js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient
- Nodejs' package ecosystem npm is the largest ecosystem of open source libraries in the world













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