upgrade create react app code example
Example 1: update react version
//Is used to update the version only; such as 16.0.0 can be update to latest 16.13.0 but..
//but.. 15.0.0 can't be updated to 16.13.0 or to 16.0.0 with this
npm update react
//Use this to go from 15.0.0 to 16.13.0
npm install --save react@latest
Example 2: update create react app
npm install react-scripts@latest
Example 3: update react app
//NPM
npm install --save react@latest
//Yarn
yarn upgrade react@latest
Example 4: how to update react app
//open terminal and run thsi code
cd newreact
//where newreact is the old react app you created
//open package.json in text editor and change the version to latest
//open the same terminal gain and run this
npm install