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rayway30419/default_proc.rb

Last active March 1, 2018 15:54
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Hash#default_proc
Raw
default_proc.rb
videos = Hash.new do |h,k|
h[k] = "https://www.youtube.com/watch?v=#{k.to_s}"
end
%w(vVyf_TqWVzI cZFPVAOrdXQ 5tQ4xHMR3iU).each { |id| videos[id] }
puts videos
# {
# "vVyf_TqWVzI"=>"https://www.youtube.com/watch?v=vVyf_TqWVzI",
# "cZFPVAOrdXQ"=>"https://www.youtube.com/watch?v=cZFPVAOrdXQ",
# "5tQ4xHMR3iU"=>"https://www.youtube.com/watch?v=5tQ4xHMR3iU"
# }
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