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After Installation Configuration
Idea - Hot reloading
To enable hot reloading, you need to disable safe write. See Web - (Hot|Live) (Edit|Reload) - Auto File Sync
Update
See Change Log: Change Log
Normally:
# Upgrade the script
npm install --save-dev --save-exact [email protected]
# Upgrade the app
npm install -g create-react-app
Library
https://www.npmjs.com/package/react-dev-utils - utilities