Sha256: 2a22134d52aee0a7c748f4729cf9062e532fd53592e49823f9dfa545bb7d8fd5
Contents?: true
Size: 595 Bytes
Versions: 10
Compression:
Stored size: 595 Bytes
Contents
module Enumerable
# Returns a list on non-unique,
#
# [1,1,2,2,3,4,5].nonuniq #=> [1,2]
#
# CREDIT: Martin DeMello
def nonuniq
h1 = {}
h2 = {}
each {|i|
h2[i] = true if h1[i]
h1[i] = true
}
h2.keys
end
# #
# def nonuniq!
# raise unless respond_to?(:replace)
# h1 = {}
# h2 = {}
# each {|i|
# h2[i] = true if h1[i]
# h1[i] = true
# }
# self.replace(h2.keys)
# end
# Return list of dulicate elements.
#
# CREDIT: Thibaut Barrère
alias_method :duplicates, :nonuniq
end
Version data entries
10 entries across 10 versions & 1 rubygems