node app.js |
Run a Node.js script (app.js) |
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node -v |
Check Node.js version |
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npm -v |
Check npm version |
npm init |
Manually initialize package.json (prompts for project details) |
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npm init -y |
Automatically initialize package.json with default values |
npm install <package> |
Install a package and add it to node_modules |
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npm install -g <package> |
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npm install <package> --save |
(Default) Install and add to dependencies |
npm install <package> --save-dev |
Install and add to devDependencies (for development only) |
npm install |
Install all dependencies listed in package.json |
npm uninstall <package> |
Remove a package |
npm update <package> |
Update a specific package |
npm outdated |
Check for outdated dependencies |
npm run <script> |
Run a script defined in package.json |
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npm start |
Run the start script (npm run start) |
npm test |
Run the test script |
npm run build |
Run the build script |