{"blog_title":"by shigemk2","author_url":"https://blog.hatena.ne.jp/shigemk2/","provider_name":"Hatena Blog","type":"rich","version":"1.0","author_name":"shigemk2","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2F20120818%2F1345281535\" title=\"let - by shigemk2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Haskell"],"blog_url":"https://www.shigemk2.com/","height":"190","description":"let \u5f0f\u306f where \u7bc0\u306b\u3068\u3066\u3082\u3088\u304f\u4f3c\u3066\u3044\u308b\u3002 where \u306f\u95a2\u6570\u306e\u7d42\u308f\u308a\u3067\u5909\u6570\u3092\u675f\u7e1b\u3057\u3001 \u305d\u306e\u5909\u6570\u306f\u30ac\u30fc\u30c9\u3092\u542b\u3080\u95a2\u6570\u5168\u4f53\u304b\u3089\u898b\u3048\u308b\u3002\u305d\u308c\u306b\u5bfe\u3057\u3001let\u5f0f\u306f\u3001\u3069\u3053\u3067\u3082\u5909\u6570\u3092\u675f\u7e1b\u3067\u304d\u3001\u305d\u3057\u3066let\u81ea\u8eab\u3082\u5f0f\u306b\u306a\u308b\u3002\u3057\u304b\u3057 let \u5f0f\u304c\u4f5c\u308b\u675f\u7e1b\u306f\u5c40\u6240\u7684\u3067\u3001\u30ac\u30fc\u30c9\u9593\u3067\u5171\u6709\u3055\u308c\u306a\u3044\u3002 \u675f\u7e1b\u3092\u884c\u3046 Haskell \u306e\u4ed6\u306e\u69cb\u6587\u3068\u540c\u3058\u304f\u3001let \u5f0f\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u3082\u4f7f\u3048\u308b\u3002let\u306f\u3001 let bindings in expression \u3068\u3044\u3046\u5f62\u3092\u53d6\u308b\u3002\u675f\u7e1b\u3092\u5148\u306b\u66f8\u3044\u3066\u3001in\u306e\u3042\u3068\u306b\u5f0f\u3092\u8ffd\u52a0\u3059\u308b\u3068\u3044\u3046\u611f\u3058\u3002\u305f\u3060\u3057\u3001let\u306f\u5f0f\u3060\u3051\u3069where\u306f\u5f0f\u3058\u3083\u306a\u3044\u3053\u3068\u306b\u7559\u610f\u3059\u308b\u3053\u3068\u3002 cylinder :: Doub\u2026","url":"https://www.shigemk2.com/entry/20120818/1345281535","title":"let","image_url":null,"published":"2012-08-18 18:18:55","width":"100%"}