LYAH beginner on page 55.

What I try to do is see the heading of a section, eg repeat function and then try to come up with my own version before looking at books implementation.

Here is my implementation:

repeat' :: a -> [a]

repeat' x = [x] ++ repeat' x

Here is books:

repeat' :: a -> [a]

repeat' x = x:repeat' x

Mine appears to work.  Is mine just as good?  Are there problems with my way?  Is books way more idiomatic Haskell?

I want to learn the best approaches hence my question.

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