Method: Enumerable#compact_map

Defined in:

lib/core/facets/enumerable/compact_map.rb

#compact_map(&block) ⇒ Object Also known as: compact_collect

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.

# File 'lib/core/facets/enumerable/compact_map.rb', line 17

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