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

Some other ideas of implementations of intersperse and intercalate, if someone is interested:

myIntersperse :: a -> [a] -> [a]
myIntersperse _ [] = []
myIntersperse e xs = init $ xs >>= (:[e])

myIntercalate :: [a] -> [[a]] -> [a]
myIntercalate e xs = concat $ myIntersperse e xs

xs >>= f is equivalent to concat (map f xs).