update all package.json dependencies code example

Example 1: upgrade all packages in package.json

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

Example 2: update all packages in package.json

//To install major updates globally
npm install -g npm-check-updates

//To see a list of outdated packages
npm outdated

//To update the packages to their latest versions in package.json
ncu -u

//To install the new updates
npm update 	or 	npm install