GHCi

GHCi is the interactive environment for the Glasgow Haskell Compiler (GHC), allowing developers to write, test, and debug Haskell code in a REPL (Read-Eval-Print Loop) style. It provides features like loading modules, evaluating expressions, and inspecting types, making it essential for Haskell development and experimentation.

Also known as: GHC Interactive, Haskell REPL, Glasgow Haskell Compiler Interactive, GHCi REPL, Haskell GHCi

Why learn GHCi?

Developers should learn GHCi when working with Haskell for rapid prototyping, debugging, and learning the language, as it offers immediate feedback and interactive exploration of code. It is particularly useful in functional programming contexts, academic settings, or projects requiring mathematical computations, where iterative testing and type checking are crucial.

Learning Resources

• docs: GHC User's Guide - GHCi
• tutorial: Learn You a Haskell for Great Good! - Starting Out
• book: Haskell Programming from First Principles - Using GHCi
• video: GHCi Tutorial on YouTube