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HC14-14. Haskell Chapter 14 Practical Tasks: Cabal_and_language_extensions |
This lesson introduces Cabal and Language Extensions, essential tools for managing Haskell projects and extending the language’s capabilities. It begins with an introduction to Cabal, Haskell’s build system and package manager, explaining how it simplifies dependency management and project organization. Learners will then create a new Haskell project, exploring the Cabal file, which defines project metadata, dependencies, and configurations. Using an external library, the lesson demonstrates how to integrate third-party functionality. The process of building and running the executable is covered, ensuring a smooth workflow for Haskell development. The lesson then shifts to language extensions and pragmas, which unlock advanced Haskell features beyond the standard language definition. Two specific extensions are highlighted: NumericUnderscores, which improves number readability, and TypeApplications, which allows explicit type specification for polymorphic functions. As with previous topics, both video and written materials complement each other—videos provide practical demonstrations, while written content offers structured, sequential explanations. By mastering Cabal and language extensions, developers gain greater control over their projects and unlock powerful features to enhance their Haskell programming experience |
