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This article mainly introduces "how to understand nodejs and npm". In daily operation, I believe many people have doubts about how to understand nodejs and npm. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "how to understand nodejs and npm"! Next, please follow the editor to study!

Nodejs is a JavaScript running environment based on Chrome V8 engine and a development platform that allows JavaScript to run on the server side. Npm, which means "node package Manager" in Chinese, is Nodejs's default software package management system written in JavaScript.

Operating environment of this tutorial: windows7 system, nodejs 12.19.0&&npm version 6.14.8, Dell G3 computer.

What is nodejs?

Node.js was released in May 2009 and developed by Ryan Dahl. It is a JavaScript running environment based on Chrome V8 engine. It is a development platform that allows JavaScript to run on the server side. It uses an event-driven, non-blocking Imax O model and makes JavaScript run on the server side. It makes JavaScript a scripting language on a par with server-side languages such as PHP, Python, Perl, Ruby and so on.

Node.js optimizes some special use cases and provides alternative API to make V8 run better in non-browser environment. V8 engine executes Javascript very fast and has very good performance. The platform based on Chrome JavaScript runtime is used to build web applications with fast response and easy to expand.

What is npm?

Npm (full name Node Package Manager, or "node package Manager") is Nodejs's default software package management system written in JavaScript. Through npm, you can install, share, distribute code, and manage project dependencies.

Npm is the package management tool of the JavaScript world and the default package management tool of the Node.js platform, which is installed with Nodejs. Similar to pip in maven,gradle,python in Java syntax.

Npm can solve many problems in the deployment of NodeJS code. Common usage scenarios are as follows:

Allows users to download third-party packages written by others from the NPM server for local use.

Allows users to download and install command-line programs written by others from the NPM server for local use.

Allows users to upload their own packages or command-line programs to the NPM server for others to use.

Npm coexists with Nodejs, as long as Nodejs,npm is installed and Nodejs is installed. Open the terminal and execute the following command to check that the installation is successful.

At this point, the study on "how to understand nodejs and npm" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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