//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npm outdated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"
npm i -g npm@version_number
// Any of the below command will work.
npm -v
npm --v
npm -version
npm --version