|
- \ifger{Ein paar häufig verwendete List-Operationen}{Let's check on a few very common list operations:}
- \begin{haskellcode*}{bgcolor=mygrey,frame=single,numbers=none,label=GHCi}
- > [1, 2] ++ [4, 5] -- append two lists
- > head [1, 2, 3] -- first element
- > tail [1, 2, 3] -- everything after the head
- > reverse [1, 2, 3] -- reverse a list
- > take 2 [1, 2, 3] -- take the first two elements
- > drop 2 [1, 2, 3] -- drop the first two elements
- > sum [1, 2, 3]
- > elem 7 [1, 2, 3] -- is there a 7 in the list?
- \end{haskellcode*}
- \pause
- \ifger{Ein String in Haskell ist einfach nur eine Liste von Chars!}{A String in haskell is just a list of Chars!}
- \begin{haskellcode*}{bgcolor=mygrey,frame=single,numbers=none,label=GHCi}
- > ['a', 'b', 'c']
- > 'a' : []
- > head "abc"
- > 'a' ++ 'c'
- \end{haskellcode*}
|