update all packages in package.json using yarn code example

Example 1: yarn 2 upgrade all packages

# You've to install the interactive-tools plugin first.
$ yarn plugin import interactive-tools
$ yarn upgrade-interactive

 Press / to select packages.      Press  to install.
 Press / to select versions.   Press  to abort.
 
 # And if U Want To Use The Old Command (yarn outdated) install this plugin
$ yarn plugin import https://github.com/mskelton/yarn-plugin-outdated/raw/main/bundles/@yarnpkg/plugin-outdated.js
$ yarn outdated

Example 2: yarn add install all packages in package,json

yarn install