1. Check the local npm version: npm -v
2. Upgrade the npm version: npm install npm@latest -g (@latest means the latest version)
3. View help for the specified command: npm specify command --help
4. View the npm help command: npm --help
5. Initialization: npm init
6. Initialization (skip wizard): npm init --yes (-y)
7. Download dependencies: npm install
8. Packages installed in the development environment: npm install package name --save-dev (npm install package name -D)
9. Packages installed in the development/production environment: npm install package name --save (npm install package name -S)
10. View the installed node packages in the current directory: npm list (npm ls --depth=search depth)
11. View the globally installed node packages: npm list -g
12. Update the specified package: npm update package name
13. Uninstall the specified package: npm uninstall package name
14. View configuration information: npm config list
15. View all version information of the specified package on remote npm: npm info specifies the package name
16. View the installation path of the current package: npm root
17. View the global package installation path: npm root -g
18. Check the specified package and version information installed locally. Empty is not displayed: npm ls package name
19. Check the specified package and version information installed globally. No empty is displayed: npm ls package name -g
20. Modify the package download source: npm config set registry download source
21. Install cnpm: npm install -g cnpm --registry=Download source
22. Automatically start the browser to open the package’s home page: npm home package name
23. Check the existing issues of the package, or the public roadmap: npm bugs package name
24. View the code address of the package: npm repo package name
25. View package details: npm info package name
26. Search npm repository: npm search string/regular expression
27. Check for outdated dependencies: npm outdated
28. Execute the script: npm run dev/build
29. Clean and install dependencies: npm ci
30. Remove duplicate dependencies: npm dedupe/ddp
31. Scan the project to find vulnerabilities in all dependencies: npm audit
32. Automatically install patch versions of all vulnerable packages: npm audit fix
33. Test the local package: npm link/npm link module name/npm unlink module name