06/08/25 22:56:01
>>347
URLﾘﾝｸ(d.hatena.ne.jp)
これが今まで見た中で、一番わかりやすかった。
irbで一つ一つ打ち込んでみるとわかるよ。
irb(main):005:0> "hoge".object_id
=> 39591656
irb(main):006:0> "hoge".object_id
=> 39582128 ←上と違う
irb(main):007:0> "hoge".object_id == "hoge".object_id
=> false
irb(main):008:0> :hoge.object_id
=> 4067598
irb(main):009:0> :hoge.object_id
=> 4067598 ←上と同じ
irb(main):010:0> :hoge.object_id == :hoge.object_id
=> true
irb(main):011:0>