{"version":"1.0","type":"rich","image_url":null,"url":"https://karasuyamatengu.hatenadiary.org/entry/20110304/1299219724","height":"190","author_name":"karasuyamatengu","blog_title":"karasuyamatengu\u306e\u65e5\u8a18","author_url":"https://blog.hatena.ne.jp/karasuyamatengu/","width":"100%","title":"clojure\u306e\u4fbf\u5229\u306aif-let ","provider_name":"Hatena Blog","description":"if-let\u3068when-let\u3068\u3044\u3046\u4fbf\u5229\u306a\u30de\u30af\u30ed\u306e\u89e3\u8aac http://blog.jayfields.com/2011/03/clojure-if-let-and-when-let.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+jayfields/mjKQ+(Jay+Fields+Thoughts) (if-let [a ] ) \u304c\u771f\u306a\u3089\u305d\u306e\u5024\u3092a\u306b\u30d0\u30a4\u30f3\u30c9\u3057\u3066\u3001\u3092\u8a55\u4fa1\u3059\u308b\u3002\u304c\u507d\u306a\u3089\u3092\u8fd4\u3059\u3002\u4f8b user=> (if-let [a 4] (+ a 4) (+ 10 10)) 8 when-let if-let\u3068\u4f3c\u3066\u3044\u308b\u304c\u2026","categories":[],"provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkarasuyamatengu.hatenadiary.org%2Fentry%2F20110304%2F1299219724\" title=\"clojure\u306e\u4fbf\u5229\u306aif-let  - karasuyamatengu\u306e\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>","blog_url":"https://karasuyamatengu.hatenadiary.org/","published":"2011-03-04 15:22:04"}