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Module: List
Function: nub
Type: Eq a => [a] -> [a]
Description: nub (meaning "essence") removes duplicates elements from a list.
Related: group, groupBy, inits, intersperse, mapAccumL, mapAccumR, nubBy, partition, sort, sortBy, tails, transpose

Example 1

Input: nub [0,1,2,3,2,1,0]

Output: [0,1,2,3]

Example 2

Input: nub "AAAAAAAAAAAABBBBBBBBBBBBBBCCCCC"

Output: "ABC"