25 lines
397 B
Markdown
25 lines
397 B
Markdown
---
|
|
title: Hello World Program
|
|
localeTitle: Programa Hello World
|
|
---
|
|
## O mais simples programa Hello World em Haskell
|
|
|
|
```haskell
|
|
main :: IO ()
|
|
main = do
|
|
putStrLn "Hello World"
|
|
```
|
|
|
|
## Hello World usando a composição da função
|
|
|
|
```haskell
|
|
hello :: String
|
|
hello = "Hello World"
|
|
|
|
printer :: String -> IO ()
|
|
printer = putStrLn . show
|
|
|
|
main :: IO ()
|
|
main = printer hello
|
|
|
|
``` |