{"version":"1.0","author_url":"https://blog.hatena.ne.jp/joker1007/","blog_title":"joker1007\u2019s diary","author_name":"joker1007","height":"190","provider_name":"Hatena Blog","blog_url":"https://joker1007.hatenablog.com/","description":"\u5099\u5fd8\u9332\u517c\u3001\u521d\u5fc3\u8005\u5411\u3051\u306e\u30e1\u30bd\u30c3\u30c9\u4e00\u89a7\u3002 \u4f59\u88d5\u304c\u3042\u308c\u3070Rails\u7de8\u3068\u304b\u3082\u66f8\u3053\u3046\u304b\u306a\u3002 \u3053\u308c\u5fd8\u308c\u3066\u308b\u3068\u304b\u4f55\u4e8b?\u3068\u304b\u3044\u3046\u7a81\u3063\u8fbc\u307f\u304c\u3042\u308c\u3070\u662f\u975e\u304a\u9858\u3044\u3057\u307e\u3059\u3002 \u3082\u3046\u3061\u3087\u3063\u3068\u30b3\u30fc\u30c9\u306e\u5177\u4f53\u4f8b\u66f8\u304d\u305f\u304b\u3063\u305f\u3051\u3069\u3001\u3081\u3093\u3069\u304f\u3055\u304f\u306a\u3063\u3066\u304d\u305fw Array Array#combination(n), Array#permutation(n) \u914d\u5217\u306e\u30c7\u30fc\u30bf\u3092\u5143\u306b\u7d44\u307f\u5408\u308f\u305b(\u9806\u5217)\u3092\u4f5c\u3063\u3066\u304f\u308c\u307e\u3059\u3002 \u30d6\u30ed\u30c3\u30af\u3092\u6e21\u3055\u306a\u3044\u5834\u5408\u306fEnumerator\u3067\u7d44\u307f\u5408\u308f\u305b\u306e\u5404\u8981\u7d20\u3092\u5217\u6319\u3057\u307e\u3059\u3002 Enumerator Enumerator#with_index(offset = 0) Enumerator\u306e\u5404\u8981\u7d20\u306b\u5408\u308f\u305b\u3066index\u3092\u5217\u6319\u3057\u3066\u2026","categories":["Ruby","Rails"],"url":"https://joker1007.hatenablog.com/entry/20120815/1345028906","type":"rich","width":"100%","published":"2012-08-15 20:08:26","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjoker1007.hatenablog.com%2Fentry%2F20120815%2F1345028906\" title=\"Rubyist\u306a\u3089\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u5730\u5473\u3060\u3051\u3069\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c9 - joker1007\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"title":"Rubyist\u306a\u3089\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u5730\u5473\u3060\u3051\u3069\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c9"}