Re: [Haskell-cafe] loop problem

10 May 2014


      On 05/10/2014 05:53 PM, Roelof Wobben wrote:
...
Thanks , it's working now like this :
loop :: Int -> IO ()
loop n = do
    if n <= 100
    then do
        putStrLn (show n );
        putChar ' ';
        putStrLn (show (n * n )) ;
        loop (n + 1);
    else
       return () ;
main :: IO ()
main = loop 1
But the outcome looks like this:
1
   1
2
   4
Can I somehow make it like this
1   1
2    4
3    9
Roelof
Take a look at the `putStr' function. It omits the newline character 
that putStrLn writes at the end of the string.

Jochem

-- 
Jochem Berndsen | jochem@functor.nl