Capitalize in Haskell

Published on 13 October 2019 (Updated: 26 October 2019)

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.

How to Implement the Solution

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How to Run the Solution

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