brew update
brew install yarn
Add export PATH="$PATH:`yarn global bin`" to your profile
yarn start
Starts the development server.
yarn run build
Bundles the app into static files for production.
yarn test
Starts the test runner.
yarn run eject
Removes this tool and copies build dependencies, configuration files
and scripts into the app directory. If you do this, you can’t go back!
Install Dependencies
yarn add react-bootstrap --save
npm install bootstrap@3 --save
What is running on port
lsof -n -i4TCP:$PORT | grep LISTEN