Question: 2. Write a Haskell function spanString of type (Char, [Char])>[Char] that takes a character c and a string s as arguments, and returns the substring

2. Write a Haskell function spanString of type (Char, [Char])>[Char] that takes a character c and a string s as arguments, and returns the substring of s before the first occurrence of c. For example, the expression spanString 'b', "ltfb26bym") evaluates to "ltf". Turn in a listing of the function, and the results of this test case

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