Environment Variables
Create React App
https://create-react-app.dev/docs/adding-custom-environment-variables/
Use a prefix REACT_APP_
REACT_APP_MAP=
REACT_APP_WEBSITE_URL=.env
Usage
process.env.REACT_APP_MAP;
process.env.REACT_APP_WEBSITE_URL;Next.js
https://nextjs.org/docs/api-reference/next.config.js/environment-variables
Use a prefix NEXT_PUBLIC_
NEXT_PUBLIC_MAP=
NEXT_PUBLIC_WEBSITE_URL=.env
Usage
process.env.NEXT_PUBLIC_MAP;
process.env.NEXT_PUBLIC_WEBSITE_URL;VITE_MAP=
VITE_WEBSITE_URL=.env
Usage
import.meta.env.VITE_MAP;
import.meta.env.VITE_WEBSITE_URL;