update npm package to latest code example

Example 1: update npm

// update npm//
npm install -g npm@latest

Example 2: update npm

npm install -g npm@latest

Example 3: upgrade npm

npm i -g npm-upgrade

Example 4: use npm to update packages to latest version

npm i -g npm-check-updates
ncu -u
npm install

Example 5: update node.js dependencies

npm install -g npm-check-updates
ncu -u
npm update
npm install

Example 6: npm update all

npm update --save