rubyのeach, mapの違い
すごく初歩的ですが、新年一発目のエントリは去年の積み残しから。 each [1] pry(main)> def each_sample [1] pry(main)* (1..10).to_a.each do |i| [1] pry(main)* piyo = i + 1 [1] pry(main)* end [1] pry(main)* end => :hoge [2] pry(main)> hoge = each_sample() => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] http://ref.xai…
