how to install latest npm version code example

Example 1: install latest npm

npm install npm@latest -g

Example 2: update npm

npm install -g npm@latest

Example 3: npm latest version windows

npm-windows-upgrade --npm-path "C:\nodejs"

Example 4: what is npm install

npm install module-name
npm i module-name
puts module-name package (js library file) 
into node_modules folder
so you can require it in node app