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Contents
require 'facet/enumerable/commonality'
module Enumerable
# Like commonality but returns an array if no block is given.
#
def find_collisions( &blk ) #:yield:
if block_given?
commonality( &blk )
else
commonality.values.flatten.uniq
end
end
end
# _____ _
# |_ _|__ ___| |_
# | |/ _ \/ __| __|
# | | __/\__ \ |_
# |_|\___||___/\__|
#
=begin test
require 'test/unit'
class TCEnumerable < Test::Unit::TestCase
def test_find_collisions
a = [1,2,2,3,3,3]
assert_equal( [2,3], a.find_collisions )
a = [1,2,2,3,3,3]
r = {false=>[1, 2, 2], true=>[3, 3, 3]}
assert_equal( r, a.find_collisions { |x| x > 2 } )
end
end
=end
Version data entries
22 entries across 22 versions & 1 rubygems