Answers for "npm update all deprecated packages"

upgrade all packages in package.json

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

update node.js dependencies

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

use npm to update packages to latest version

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

update all dependencies npm

npm update  //update all local packages