Capitalize in Haskell

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

Capitalize in Haskell

Welcome to the Capitalize 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 Data.Char
import System.Environment

capitalize :: String -> String
capitalize (head:tail) = toUpper head : tail
capitalize [] = []

main = do  
    args <- getArgs
    case args of
      [inputStr] -> case inputStr of
        [] -> putStrLn "Usage: please provide a string"
        _  -> putStrLn $ capitalize inputStr
      _          -> putStrLn "Usage: please provide a string"

Capitalize 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 26 2019 23:11:24. The solution was first committed on Oct 13 2019 17:52:43. As a result, documentation below may be outdated.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

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