- Modern web dev can't exist without package manager.
- Management of open-source tools, libraries, frameworks is needed for modern web development.
node -v // Check node version
npm -v // Check npm version
npm init -y // Package.json file creation
npm install --save-dev node-sass // Installs pkg as devDependency
npm uninstall --save-dev node-sass // Uninstall pkg as devDependency