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Contents
module Enumerable
# A more versitle #compact method. It can be used to
# collect and filter items out in one single step.
#
# c = [1,2,3].compact_map do |n|
# n < 2 ? nil : n
# end
#
# c #=> [2,3]
#
# CREDIT: Trans
#
# DEPRECATE: This method should probably be removed b/c #purge
# does almost the same thing and enum.map{}.compact works too.
def compact_map(&block)
y = []
if block_given?
each do |*a|
r = yield(*a)
y << r unless r.nil?
end
else
each do |r|
y << r unless r.nil?
end
end
y
end
#
alias_method :compact_collect, :compact_map
end
Version data entries
10 entries across 9 versions & 2 rubygems