Is there any haskell function to concatenate list with separator?

Question

Is there a function to concatenate elements of a list with a separator? For example:

> foobar \" \" [\"is\",\"there\",\"such\",\"a\",\"function\",\"?\"]
[         


        

Answer 1

joinBy sep cont = drop (length sep) $ concat $ map (\w -> sep ++ w) cont