{"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkj-ki.hatenablog.com%2Fentry%2F20101013%2Fp1\" title=\"\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u4f5c\u308a\u305f\u3044\u6642\u306b\u306fArray#product\u3092\u4f7f\u3046 - kj-ki\u2019s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","categories":[],"type":"rich","author_url":"https://blog.hatena.ne.jp/kj-ki/","blog_title":"kj-ki\u2019s blog","description":"Cassandra\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8272\u3005\u5909\u3048\u306a\u304c\u3089\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u305f\u3044\u3068\u601d\u3063\u305f\uff0e \u304c\uff0c\u305d\u308c\u4ee5\u524d\u306b\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u4f5c\u308b\u3060\u3051\u3067\u56db\u82e6\u516b\u82e6\u3057\u3066\u3057\u307e\u3063\u305f\u306e\u3067\uff0c\u3053\u3053\u306b\u66f8\u3044\u3066\u304a\u3053\u3046\u3068\u601d\u3046\uff0e Array#product Ruby\u306b\u306fArray#product\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u3066\uff0cArray\u3067\u30d1\u30e9\u30e1\u30fc\u30bf\u9054\u3092\u6271\u3046\u306e\u3067\u3042\u308c\u3070\u5168\u304f\u554f\u984c\u306a\u3044\uff0e [1, 2].product([3, 4]) => [[1, 3], [1, 4], [2, 3], [2, 4]] \u203b\u305f\u3060\u3057\uff0cRuby 1.8.7\u4ee5\u4e0a\u3067\uff0e Hash\u3067product \u3067\u3082\uff0c\u666e\u901a\u306fArray\u3067\u5ef6\u3005\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u9023\u306d\u305f\u308a\u3057\u306a\u3044\uff0e\u3053\u3053\u306fHash\u3092\u4f7f\u3044\u305f\u3044\uff0e \u3057\u304b\u3057\uff0cHash\u2026","width":"100%","author_name":"kj-ki","version":"1.0","height":"190","url":"https://kj-ki.hatenablog.com/entry/20101013/p1","title":"\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u4f5c\u308a\u305f\u3044\u6642\u306b\u306fArray#product\u3092\u4f7f\u3046","published":"2010-10-13 00:00:00","provider_url":"https://hatena.blog","blog_url":"https://kj-ki.hatenablog.com/"}