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Node Package Manager (NPM)

Information Technology > Programming frameworks

Description

Node Package Manager (NPM) is a vital tool for JavaScript developers, used for managing and sharing packages of code. It's essentially a library of reusable code modules that can be integrated into your projects, saving you from having to write everything from scratch. NPM also handles dependencies, ensuring that the correct versions of required packages are installed. With NPM, you can easily install, update, or uninstall packages using simple commands. Advanced users can even publish their own packages to the NPM registry, making them available for other developers to use. Understanding NPM can significantly streamline your coding process and enhance productivity.

Expected Behaviors

✎
LEVEL 1

Fundamental Awareness

At the fundamental awareness level, individuals should have a basic understanding of what NPM is and its purpose. They should be familiar with the package.json file and recognize basic NPM commands such as npm install and npm start.

🌱
LEVEL 2

Novice

Novices should be able to perform basic operations like installing, updating, and uninstalling packages using NPM. They should know how to create a basic package.json file and use npm init to create a new project.

🌍
LEVEL 3

Intermediate

Intermediate users should be proficient in managing both local and global packages. They should understand semantic versioning and be able to use npm scripts for task automation. They should also understand dependencies and devDependencies, use .npmrc file for configuration, and understand the use of package-lock.json.

⭐
LEVEL 4

Advanced

Advanced users should be capable of publishing packages to the NPM registry and managing package deprecations. They should be comfortable using npm link for local package development, working with scoped packages, and using npx for executing packages. They should also understand and handle common errors.

🏆
LEVEL 5

Expert

Experts should be adept at securing NPM packages, optimizing NPM installs, and using NPM audit to identify and fix security vulnerabilities. They should be able to automate NPM publishing through CI/CD pipelines, contribute to NPM open source projects, and have a deep understanding of NPM's internals.

Micro Skills

✎
LEVEL 1

Fundamental Awareness

Knowing the full form of NPM
Recognizing NPM as a package manager for JavaScript
Understanding the basic functionality of NPM
Identifying package.json as a manifest file
Understanding that package.json holds various metadata relevant to the project
Knowing that package.json can document dependencies of a project
Understanding the function of 'npm install' command
Understanding the function of 'npm start' command
Recognizing other basic commands like 'npm test', 'npm stop'
🌱
LEVEL 2

Novice

Understanding the difference between local and global installation
Using npm install command with package name
Specifying version during package installation
Using npm update command to update packages
Understanding how semantic versioning affects updates
Updating global packages
Using npm uninstall command with package name
Uninstalling global packages
Verifying successful uninstallation
Understanding the structure of package.json
Manually creating a package.json file
Adding dependencies and devDependencies to package.json
Understanding the purpose of npm init
Using npm init with default settings
Customizing npm init through command line prompts
🌍
LEVEL 3

Intermediate

Understanding the difference between local and global packages
Installing packages locally
Installing packages globally
Uninstalling local and global packages
Knowing what semantic versioning is
Understanding major, minor, and patch versions
Using caret (^) and tilde (~) in versioning
Understanding pre-release and build metadata tags
Creating custom scripts in package.json
Running scripts using npm run
Understanding pre and post hooks
Passing arguments to npm scripts
Knowing what dependencies and devDependencies are
Adding packages to dependencies
Adding packages to devDependencies
Understanding the impact on production builds
Understanding the purpose of .npmrc file
Setting up registry in .npmrc
Setting up proxy in .npmrc
Setting up other configurations in .npmrc
Knowing what package-lock.json is
Understanding the need for package-lock.json
Resolving conflicts in package-lock.json
Updating package-lock.json
⭐
LEVEL 4

Advanced

Creating a user account on NPM
Logging into the NPM CLI
Understanding package versioning
Using npm publish command
Updating and republishing a package
Identifying deprecated packages
Understanding the implications of using deprecated packages
Finding alternatives for deprecated packages
Using npm deprecate command
Understanding symbolic links
Creating a symbolic link using npm link
Removing a symbolic link using npm unlink
Managing linked packages
Understanding the concept of scopes in NPM
Creating a scoped package
Publishing a scoped package
Installing and using scoped packages
Understanding the difference between npm and npx
Executing a package using npx
Using npx for testing different package versions
Using npx for running code from gist or other repositories
Troubleshooting EACCES permission errors
Resolving ENOENT no such file or directory errors
Handling ETIMEDOUT and ECONNRESET network errors
Debugging ERR! 404 'name' is not in the npm registry errors
Fixing npm ERR! code ELIFECYCLE errors
🏆
LEVEL 5

Expert

Understanding NPM security best practices
Using npm audit to identify vulnerabilities
Understanding and using .npmignore file
Setting up two-factor authentication for NPM
Understanding and using npm ci for faster, more reliable builds
Leveraging package-lock.json or yarn.lock for consistent installs
Using npm cache for offline installs and faster build times
Running npm audit to scan project dependencies
Fixing vulnerabilities using npm audit fix
Manually addressing vulnerabilities when automatic fixes are not available
Configuring CI/CD tools for NPM publishing
Understanding semantic-release for automated versioning and publishing
Setting up test coverage and quality gates before publishing
Understanding the contribution process and guidelines of NPM projects
Setting up local development environment for NPM projects
Writing tests for contributions
Submitting pull requests and handling code reviews
Understanding how NPM resolves and installs dependencies
Knowing how NPM handles scripts and lifecycle events
Understanding how NPM interacts with the Node.js runtime
Reading and interpreting NPM's source code

Skill Overview

  • Expert2 years experience
  • Micro-skills95
  • Roles requiring skill4

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