In a Flutter project, you need to implement a feature that requires different UI layouts for web and desktop. This is achieved using ________.

In a Flutter project, implementing different UI layouts for web and desktop can be achieved using conditional compilation. Dart allows developers to conditionally include or exclude code based on compile-time variables. By leveraging conditional compilation, developers can write platform-specific code segments tailored for web and desktop layouts. This approach enhances code organization and maintainability while ensuring a seamless user interface on various platforms.