{"width":"100%","blog_url":"https://boxnos.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fboxnos.hatenablog.com%2Fentry%2F20070902%2F1188664607\" title=\" SICP\u3092\u8aad\u3080(49) \u554f\u984c 2.21 - 2.23 map\u306e\u554f\u984c\u3092\u89e3\u3053\u3046\u3002 - \u30dc\u30af\u30ce\u30b9\" 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\u3092\u8aad\u3080(49) \u554f\u984c 2.21 - 2.23 map\u306e\u554f\u984c\u3092\u89e3\u3053\u3046\u3002","author_name":"tanakaBox","provider_name":"Hatena Blog","published":"2007-09-02 01:36:47","type":"rich","description":"\u30b5\u30af\u30b5\u30af\u9032\u3080\u3002\u3053\u308c\u304f\u3089\u3044\u306e\u554f\u984c\u304c\u7d9a\u3044\u3066\u304f\u308c\u308b\u3068\u5b09\u3057\u3044\u3093\u3060\u3051\u3069\u30fb\u30fb\u30fb\u3002 \u554f\u984c 2.21 \u7a74\u57cb\u3081\u554f\u984c\u3002 (define (square x) (* x x)) (define (square-list items) (if (null? items) `() (cons (square (car items)) (square-list (cdr items))))) (square-list (list 1 2 3 4)) ; (1 4 9 16) (define (square-list items) (map square items)) (square-list (list 1 2 3 4\u2026","url":"https://boxnos.hatenablog.com/entry/20070902/1188664607","provider_url":"https://hatena.blog","categories":["Scheme"],"image_url":null,"version":"1.0","author_url":"https://blog.hatena.ne.jp/tanakaBox/","height":"190","blog_title":"\u30dc\u30af\u30ce\u30b9"}