K_Koh https://blog.hatena.ne.jp/K_Koh/ Just do IT https://k-koh.hatenablog.com/ Ruby 結論： eql?はオブジェクトの値が同じかどうかを評価する equal?はobject_idが同じかどうかを評価する irb(main):001:0> obj = %w(hoge bar baz) => ["hoge", "bar", "baz"] irb(main):003:0> copy = obj.dup => ["hoge", "bar", "baz"] # 値は同じなのでtrue irb(main):004:0> copy == obj => true # 値は同じなのでtrue irb(main):005:0> copy.eql? obj => true # object_idが違… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fk-koh.hatenablog.com%2Fentry%2F2022%2F07%2F03%2F112112" title="Ruby の eql? と equal? の違い - Just do IT" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2022-07-03 11:21:12 rich https://k-koh.hatenablog.com/entry/2022/07/03/112112 1.0 100%