{"published":"2009-06-16 17:23:59","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsirocco.hatenadiary.org%2Fentry%2F20090616%2F1245140639\" title=\"\u5e73\u8861\u6728\u3092\u4f7f\u3063\u3066\u307f\u308b - sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"sirocco","provider_url":"https://hatena.blog","type":"rich","height":"190","description":"HashTable \u306f IO \u578b\u306a\u306e\u3067\u96e3\u3057\u3044\u304b\u3089\u5e73\u8861\u6728\u3002 > :m +Data.Map > let t = empty > t > :t t --=> t :: Map k a > t --=> fromList [] \u8981\u7d20\u3092\u633f\u5165\u3057\u3066\u307f\u308b\u3002 > let t2 = insert \"key\" \"value\" t > let t3 = insert \"1\" \"1234567890\" t2 > t3 fromList [(\"1\",\"1234567890\"),(\"key\",\"value\")] > let t4 = insert \"k\" \"fuga\" t3 > t4 fromList [(\"1\",\"123\u2026","categories":["Haskell"],"provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/sirocco/","version":"1.0","title":"\u5e73\u8861\u6728\u3092\u4f7f\u3063\u3066\u307f\u308b","url":"https://sirocco.hatenadiary.org/entry/20090616/1245140639","blog_title":"sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2","image_url":null,"width":"100%","blog_url":"https://sirocco.hatenadiary.org/"}