npm install all package.json code example

Example 1: npm install package as developer dependency

npm install --save-dev package
# example:
npm install --save-dev nodemon

Example 2: how to install node dependencies

#how to install project dependecies when you download project

# example:
npm install

#NOTE:: by entering only this command your all dependecies will automatically installed.

Example 3: install an npm package

npm install package-name

To save as a dependency:
npm install package-name --save

Example 4: 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 5: how to install npm modules

npm install packagename