| http://www.w3.org/ns/prov#value | - asInt_fold "1798" 1798 Extend your function to handle the following kinds of exceptional conditions by calling error. ghci> asInt_fold "" 0 ghci> asInt_fold "-" 0 ghci> asInt_fold "-3" -3 ghci> asInt_fold "2.7" *** Exception: Char.digitToI
|