2014-07-07から1日間の記事一覧
a = ["x","y","x","z","y","x"] があったときに、 a |= [] とする。 [taskapp@localhost]$ irb irb(main):001:0> a = ["x","y","x","z","y","x"] => ["x", "y", "x", "z", "y", "x"] irb(main):002:0> a |= [] => ["x", "y", "z"] irb(main):003:0>
a = ["x","y","x","z","y","x"] があったときに、 a |= [] とする。 [taskapp@localhost]$ irb irb(main):001:0> a = ["x","y","x","z","y","x"] => ["x", "y", "x", "z", "y", "x"] irb(main):002:0> a |= [] => ["x", "y", "z"] irb(main):003:0>