Metro
Metro is a JavaScript bundler specifically designed for React Native applications, providing fast and efficient bundling of JavaScript code and assets. It handles tasks like module resolution, transformation, and minification to optimize app performance and development workflow. Originally developed by Facebook, it is the default bundler for React Native projects.
Developers should use Metro when building React Native apps, as it is tightly integrated with the framework and offers features like hot reloading and fast refresh for improved developer experience. It is essential for bundling JavaScript, TypeScript, and assets in React Native projects, ensuring efficient code delivery and debugging capabilities. Use it for mobile app development where performance and quick iteration are critical.