how to install dependencies from package.json using npm code example

Example 1: install dependencies npm

npm install

Example 2: how to install dependencies from package.json

npm install // installs dependencies listed in package.json

Example 3: install node modules

// Install as a dependency
npm install --save packageName
// OR
npm install --save package1 package2
// OR
npm install --save package@version
// OR
npm i -s packageName

// Install as a dev-dependency
npm install --save-dev package@version
// OR
npm i -D packageName

//Install globally
npm install --global packageName
//OR
npm i -g packageName

// You might need SU access on macos/linux to install globally

Example 4: add dependencies to package.json

npm install <package-name> --save # Installs the package and add dependency in package.json
npm install # Installs dependencies listed in package.json

Example 5: install dependencies npm

# npm install