About the Haskell Online Compiler
Haskell is a purely functional language centered on strong static types, immutability, and lazy evaluation. Use this compiler to explore functions, recursion, pattern matching, lists, and type-driven programming.
Supply a main IO action and use putStrLn or print for results. The compiler is useful for testing algebraic data types, recursion, list processing, guards, higher-order functions, and monadic expressions. Prefer standard library modules for portable examples.
Frequently Asked Questions
What is the Haskell Online Compiler?
Haskell is a purely functional language centered on strong static types, immutability, and lazy evaluation. Use this compiler to explore functions, recursion, pattern matching, lists, and type-driven programming.
How do I run Haskell code?
Enter or edit your program in the Code field, select Run, and read the program result in the Output field.
Which source file does this compiler use?
The submitted code is executed as index.hs, using the file format expected for Haskell.
Can this compiler accept interactive program input?
This streamlined compiler contains only Code and Output fields. Programs should include their required test values directly in the source code.
Where are compilation errors displayed?
Syntax errors, compiler messages, runtime errors, and normal program output are displayed together in the read-only Output field.