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Module: Maybe
Function: fromMaybe
Type: a -> Maybe a -> a
Description: If the argument is Just, it returns the Just value, otherwise it returns the default value provided as the first argument
Related: fromJust, mapMaybe, maybeToList

Example 1

Input: fromMaybe 'X' (lookup 3 [(1,'A'),(2,'B'),(3,'C')])

Output: 'C'

Example 2

Input: fromMaybe 'X' (lookup 32 [(1,'A'),(2,'B'),(3,'C')])

Output: 'X'