{"type":"rich","width":"100%","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/tmurata/","description":"2010/03/17 eval\u3067lookup-variable-value\u306e\u30c8\u30b3\u304c\u9593\u9055\u3063\u3066\u305f\u306e\u3067\u4fee\u6b63 2010/03/16 4.9\u306emake-named-let\u306b\u5408\u308f\u305b\u3066make-let\u3092\u4fee\u6b63\u554f\u984c\u306elet*\u5f0f\u306e\u4f8b (let* ((x 3) (y (+ x 2)) (z (+ x y 5))) (* x z)) ; 39 \u3053\u308c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306alet\u306b\u66f8\u304d\u63db\u3048\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3042\u308b\u3002 (let ((x 3)) (let ((y (+ x 2))) (let ((z (+ x y 5))) (* x z)))) ; 39 \u3068\u3044\u3046\u3053\u3068\u3067\u4ee5\u4e0b\u306e\u8981\u9818\u3067let*->nested-lets\u3092\u5b9f\u88c5\u3059\u308b\u3002 let*\u95a2\u9023\u2026","blog_url":"https://tmurata.hatenadiary.org/","provider_name":"Hatena Blog","image_url":null,"version":"1.0","categories":["SICP"],"height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftmurata.hatenadiary.org%2Fentry%2F20100315%2F1268658001\" title=\"SICP\u554f\u984c4.7 - tmurata\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>","title":"SICP\u554f\u984c4.7","author_name":"tmurata","published":"2010-03-15 22:00:01","url":"https://tmurata.hatenadiary.org/entry/20100315/1268658001","blog_title":"tmurata\u306e\u65e5\u8a18"}