{"width":"100%","published":"2023-10-11 10:02:20","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbaba-s.hatenablog.com%2Fentry%2F2023%2F10%2F11%2F100220\" title=\"\u3010C#\u3011\u914d\u5217\u3084\u30ea\u30b9\u30c8\u304c null \u3058\u3083\u306a\u3051\u308c\u3070 Concat \u3059\u308b\u62e1\u5f35\u30e1\u30bd\u30c3\u30c9 - \u30b3\u30ac\u30cd\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","author_name":"baba_s","description":"\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9 public static IEnumerable<T> ConcatIfNotNull<T> ( this IEnumerable<T> self, IEnumerable<T> second ) { return second != null ? self.Concat( second ) : self ; }","url":"https://baba-s.hatenablog.com/entry/2023/10/11/100220","title":"\u3010C#\u3011\u914d\u5217\u3084\u30ea\u30b9\u30c8\u304c null \u3058\u3083\u306a\u3051\u308c\u3070 Concat \u3059\u308b\u62e1\u5f35\u30e1\u30bd\u30c3\u30c9","type":"rich","categories":[],"provider_name":"Hatena Blog","image_url":null,"version":"1.0","blog_url":"https://baba-s.hatenablog.com/","blog_title":"\u30b3\u30ac\u30cd\u30d6\u30ed\u30b0","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/baba_s/"}