The following is a sample .env.development file for a typical web development project:
While a generic .env file is often used as a default or a global fallback, many modern frameworks (such as Create React App, Next.js, and Vue CLI) explicitly look for .env.development when the application is run in development mode (typically via a command like npm run dev or npm start). .env.development
Vite loads .env.development when you run vite or vite build --mode development. Variables must be prefixed with VITE_. but the philosophy is identical.
PORT=3000 DATABASE_URL=mongodb://localhost:27017/dev_db API_KEY=your_test_key_here DEBUG=true Use code with caution. Copied to clipboard .env.development
.env.development in Popular FrameworksThe implementation varies slightly, but the philosophy is identical.