File Input Output in Haskell

Published on 28 April 2022 (Updated: 25 September 2022)

File Input Output in Haskell

Welcome to the File Input Output in Haskell page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

module Main where

import System.IO

main :: IO ()
main = do
  -- write
  handle <- openFile "output.txt" ReadWriteMode
  hPutStr handle "file contents"
  hClose handle
  -- read
  handle <- openFile "output.txt" ReadWriteMode
  value <- hGetContents handle
  -- Print the contents of the file that was read.
  -- Haskell reads the file lazily, so the value must be printed before the handle is closed
  putStrLn value
  hClose handle

File Input Output in Haskell was written by:

If you see anything you'd like to change or update, please consider contributing.

Note: The solution shown above is the current solution in the Sample Programs repository as of Oct 24 2018 10:42:45. The solution was first committed on Oct 22 2018 09:07:26. As a result, documentation below may be outdated.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

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