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NPM (Node Package Manager) in Node.js

Introduction to Node.js
What is Node.js? History and Evolution of Node.js Advantages and Disadvantages of Node.js Use Cases of Node.js
Setting Up Node.js Environment
Node.js Installation Configuring Node.js NPM (Node Package Manager) Basic NPM Commands
Node.js Fundamentals
Node.js Architecture Node.js Modules Node.js Globals Node.js Callbacks EventDriven Programming Asynchronous Programming Streams and Buffers
Working with Node.js Modules
Creating and Exporting Modules Builtin Modules NPM Modules Creating a Package.json file Working with Module Dependencies Understanding Semantic Versioning
Express.js
Introduction to Express.js Setting Up Express.js HTTP Request Methods Routing in Express.js Request and Response Objects Middlewares in Express.js Handling Errors in Express.js
Working with Databases in Node.js
Introduction to Databases SQL vs NoSQL Databases Connecting to Databases in Node.js MongoDB (a NoSQL Database) Mongoose (an Object Data Modeling Library) CRUD Operations with MongoDB and Mongoose
Testing and Debugging in Node.js
Why is Testing Important? Unit Testing Integration Testing Debugging Node.js Applications Debugging with npm Debugger Debugging with Visual Studio Code
Deployment and Scaling of Node.js Applications
Deploying Node.js Applications Understanding the Different Environments Clustering in Node.js Load Balancing in Node.js Process Management in Node.js
Security in Node.js Applications
Common Security Threats Web Application Security Secure Coding Practices Authentication and Authorization Handling Passwords and Sensitive Data
Best Practices and Patterns in Node.js
Coding Best Practices Design Patterns Architectural Patterns Scalable Application Architecture Choosing the Right Tools and Techniques

NPM (Node Package Manager)

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#description

Node Package Manager (NPM) is a tool used to manage, install and share packages or different modules of code that can be used in Node.js projects. Using NPM, developers can easily install and manage different packages and their dependencies, making it easier and more efficient to work with external code in their projects.

NPM comes bundled with Node.js installations, so it does not require any additional installation or configuration. It uses a command-line interface (CLI) to run commands that allow developers to manage different packages.

The most commonly used commands in NPM are:
  • npm init - initializes a new Node.js project with a package.json file that contains project details and dependencies.
  • npm install - installs all packages listed in the package.json file.
  • npm install <package-name> - installs a specific package.
  • npm install <package-name> -g - installs a package globally on your machine instead of locally in your project.
  • npm update - updates all packages to their latest versions.
  • npm uninstall <package-name> - uninstalls a specific package.

Using NPM, developers can also publish their own packages to the NPM registry, making them publicly available for others to use. This allows for easy sharing and collaboration on Node.js projects.

In summary, NPM is an essential tool for managing packages and dependencies in Node.js projects, allowing developers to work more efficiently and effectively.

March 25, 2023

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