module MoreCoreExtensions::ArrayDuplicates
Public Instance Methods
duplicates()
click to toggle source
Returns an Array of the duplicates found.
[1, 2, 3, 4, 2, 4].duplicates #=> [2, 4]
# File lib/more_core_extensions/core_ext/array/duplicates.rb, line 9 def duplicates element_counts.reject { |k, v| v == 1 }.keys end