Documentation

sortUniq sorts the list and removes the duplicates of elements. Example:

sortUniq "foo bar" == " abfor"

isUnique function is to check whether the given element is unique in the list or not.

It returns Nothing when the element does not present in the list. Examples:

isUnique 'f' "foo bar" == Just True
isUnique 'o' "foo bar" == Just False
isUnique '!' "foo bar" == Nothing

Since 0.4.7.2

isRepeated is a reverse function to isUnique

Since 0.4.5

repeated finds only the elements that are present more than once in the list. Example:

repeated  "foo bar" == "o"

The repeatedBy function behaves just like repeated, except it uses a user-supplied equality predicate.

repeatedBy (>2) "This is the test line" == " eist"

unique gets only unique elements, that do not have duplicates. It sorts them. Example:

unique  "foo bar" == " abfr"

allUnique checks whether all elements of the list are unique

allUnique "foo bar" == False
allUnique ['a'..'z'] == True
allUnique [] == True (!)

Since 0.4.7.2

count of each element in the list, it sorts by keys (elements). Example:

count "foo bar" == [(' ',1),('a',1),('b',1),('f',1),('o',2),('r',1)]

count_ of each elements in the list, it sorts by their number. Example:

count_ "foo bar" == [(' ',1),('a',1),('b',1),('f',1),('r',1),('o',2)]