Answers for "how to install latest npm"

install npm

sudo apt update  ## Update apt Repository
sudo apt install npm ## Install NPM in the apt Repository
sudo npm install -g npm ## Update the NPM to Latest Stable version

npm install

npm install -g sass

how to install latest version of npm package

//For global packages 
npm i -g <package name>@latest
npm i -g express@latest

//For loacal packages
npm outdated
npm update

//Manually updating local packages
npm i <package name>@latest
npm update "react" "react-dom"

install npm

curl -sL https://deb.nodesource.com/setup_6.x | sudo bash -
curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
sudo apt-get install -y nodejs
sudo apt-get install -y npm

install npm

$ npm install
$ git add index.js package.json package-lock.json
$ git commit -m "initialize npm package"
$ git push

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