{"url":"https://blog.relucer.net/entry/2018/05/24/023051","title":"IEnumerable<T>\u304cnull\u307e\u305f\u306f\u306e\u8981\u7d20\u306e\u6570\u304c0\u500b\u306e\u5834\u5408\u3092\u5224\u5b9a\u3057\u3066\u51e6\u7406\u3092\u5206\u5c90\u3057\u305f\u3044\u3068\u304d\u306e\u8a71","blog_url":"https://blog.relucer.net/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.relucer.net%2Fentry%2F2018%2F05%2F24%2F023051\" title=\"IEnumerable&lt;T&gt;\u304cnull\u307e\u305f\u306f\u306e\u8981\u7d20\u306e\u6570\u304c0\u500b\u306e\u5834\u5408\u3092\u5224\u5b9a\u3057\u3066\u51e6\u7406\u3092\u5206\u5c90\u3057\u305f\u3044\u3068\u304d\u306e\u8a71 - \u3086\u308b\u3075\u308f\u3067\u96d1\u306a\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","author_name":"KazukiK","published":"2018-05-24 02:30:51","type":"rich","image_url":null,"author_url":"https://blog.hatena.ne.jp/KazukiK/","height":"190","description":"\u3069\u3046\u3057\u3066\u307e\u3059\u304b\uff1f \u3063\u3066\u5358\u7d14\u306a\u7591\u554f\u3092\u63d0\u793a\u3059\u308b\u3060\u3051\u306e\u30a8\u30f3\u30c8\u30ea\u30fc \u4f8b\u3048\u3070\u3001\u3053\u3093\u306a\u3084\u3064(Any()\u306e\u7d50\u679c\u3092\u53cd\u8ee2\u3059\u308b\u30d1\u30bf\u30fc\u30f3) void Hoge<T>(IEnumetable<T> foo) { // foo\u304cnull\u307e\u305f\u306f\u7a7a\u306e\u6642 if(!(foo?.Any() ?? false)) Initialize(); DoSometing(); } \u2026!\u3068\u304b\u51fa\u6765\u305f\u3089\u4f7f\u3044\u305f\u304f\u306a\u3044 \u4f8b\u3048\u3070\u3001\u3053\u3093\u306a\u3084\u30642(All\u3059\u308b\u30d1\u30bf\u30fc\u30f3) void Hoge<T>(IEnumetable<T> foo) { // foo\u304cnull\u307e\u305f\u306f\u7a7a\u306e\u6642 if(foo?.All(_ => false) ?? true) Initiali\u2026","width":"100%","blog_title":"\u3086\u308b\u3075\u308f\u3067\u96d1\u306a\u65e5\u8a18","categories":[".NET","C#","\u30d7\u30ed\u30b0\u30e9\u30e0"]}