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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.
#
# [1,2,3].compact_map do |n|
# n < 1 ? nil : n
# end
#
# _produces_
#
# [2,3]
#
# NOTE: Perhaps nicer to have as added functionality for #compact.
#
# CREDIT: Trans
def compact_map(trash=nil, &block)
y = []
if block_given?
each do |*a|
r = yield(*a)
y << r unless trash == r
end
else
each do |r|
y << r unless trash == r
end
end
y
end
alias_method :compact_collect, :compact_map
end
Version data entries
5 entries across 5 versions & 1 rubygems