{"height":"190","author_url":"https://blog.hatena.ne.jp/babie/","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","type":"rich","width":"100%","published":"2016-01-06 23:30:00","title":"Clojure\u3092\u52c9\u5f37\u3057\u3066\u3044\u308b2","url":"https://babie.hatenablog.com/entry/2016/01/06/233000_2","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbabie.hatenablog.com%2Fentry%2F2016%2F01%2F06%2F233000_2\" title=\"Clojure\u3092\u52c9\u5f37\u3057\u3066\u3044\u308b2 - babie, you&#39;re my home\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":[],"author_name":"babie","blog_title":"babie, you're my home","version":"1.0","image_url":"http://ecx.images-amazon.com/images/I/519kdAUU-gL.jpg","description":"Living Clojure\u4f5c\u8005: Carin Meier\u51fa\u7248\u793e/\u30e1\u30fc\u30ab\u30fc: O'Reilly Media\u767a\u58f2\u65e5: 2015/04/14\u30e1\u30c7\u30a3\u30a2: Kindle\u7248\u3053\u306e\u5546\u54c1\u3092\u542b\u3080\u30d6\u30ed\u30b0\u3092\u898b\u308b \u3053\u306e\u672c\u3001\u8aad\u307f\u3084\u3059\u3044\u82f1\u8a9e\u3067\u30aa\u30b9\u30b9\u30e1\u3067\u3059\u3002 \u4eca\u65e5\u306f\u7b2c2\u7ae0\u7b2c1\u7bc0\u3092\u3084\u3063\u305f\u3002 true?, false?, nil?, not, =, not=, empty? \u899a\u3048\u305f\u3002 \u3078\u30fc\u3001true\u306e\u30af\u30e9\u30b9\u306fjava.lang.Boolean\u3067Java\u306e\u305d\u306e\u307e\u307e\u4f7f\u3063\u3066\u308b\u306e\u304b\u30fc\u3002\u3063\u3066JVM\u306b\u901a\u3059\u3093\u3060\u304b\u3089\u5f53\u305f\u308a\u524d\u3063\u3061\u3083\u30fc\u5f53\u305f\u308a\u524d\u304b\u3002 \"nil is logically false\"\u30923\u56de\u5531\u3048\u3088\u3068\u304b\u51fa\u3066\u304d\u305f\uff57\u3002 (= '(:drin\u2026","blog_url":"https://babie.hatenablog.com/"}