findWithDefault package:nonempty-containers

findWithDefault :: a -> Key -> NEIntMap a -> a

O(log n). The expression (findWithDefault def k map) returns the value at key k or returns default value def when the key is not in the map.

findWithDefault 'x' 1 (fromList ((5,'a') :| [(3,'b')])) == 'x'
findWithDefault 'x' 5 (fromList ((5,'a') :| [(3,'b')])) == 'a'

findWithDefault :: Ord k => a -> k -> NEMap k a -> a

O(log n). The expression (findWithDefault def k map) returns the value at key k or returns default value def when the key is not in the map.

findWithDefault 'x' 1 (fromList ((5,'a') :| [(3,'b')])) == 'x'
findWithDefault 'x' 5 (fromList ((5,'a') :| [(3,'b')])) == 'a'