{"provider_name":"Hatena Blog","version":"1.0","title":"GenTraversable \u306e fold \u304c\u7d50\u5408\u6cd5\u5247\u3092\u6e80\u305f\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u7406\u7531","categories":["scala"],"blog_url":"https://xuwei-k.hatenablog.com/","width":"100%","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fxuwei-k.hatenablog.com%2Fentry%2F20120914%2F1347644808\" title=\"GenTraversable \u306e fold \u304c\u7d50\u5408\u6cd5\u5247\u3092\u6e80\u305f\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u7406\u7531 - xuwei-k&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://xuwei-k.hatenablog.com/entry/20120914/1347644808","description":"\u30bf\u30a4\u30c8\u30eb\u306b\u95a2\u3059\u308b\u8a00\u3044\u8a33\u307f\u305a\u3057\u307e\u3055\u3093\u306b\u7a81\u3063\u8fbc\u307e\u308c\u3066\u3001\u305d\u306e\u5f8c\u306etwitter\u4e0a\u3067\u306e\u3084\u308a\u53d6\u308a\u3082\u3042\u3063\u305f\u306e\u3067\u3001\u4e0b\u306b\u8ffd\u8a18\u3057\u305f\u3088\uff01 \u30a6\u30aa\u30fc\u30fc\u30c3 scala \u306e GenTraversable#fold \u4eca\u307e\u3067 foldl1 \u306e\u3064\u3082\u308a\u3067\u4f7f\u3063\u3066\u305f\u3051\u3069 \"a binary operator that must be associative\" \u3068\u66f8\u3044\u3066\u3042\u308b\u30e8???\u6b73\u7d0d\u3055\u3093\u3001\u6b73\u7d0d\u3055\u3093\u30fc\u30fc2012-09-15 01:52:51 via web @lyrical_logical fold\u3063\u3066\u305f\u3057\u304b2.8\u4ee5\u524d\u306f\u5b58\u5728\u3057\u306a\u304f\u3066\u30012.9\u3067parallel collection\u304c\u5165\u3063\u305f\u95a2\u4fc2\u3067\u8ffd\u52a0\u3055\u308c\u305f\u304b\u3089\u3001\u305d\u3093\u306a\u611f\u3058\u306b\u306a\u3063\u3066\u3044\u305f\u3068\u304b\u2026","blog_title":"xuwei-k's blog","author_name":"xuwei","height":"190","author_url":"https://blog.hatena.ne.jp/xuwei/","published":"2012-09-14 02:46:48","image_url":"http://a0.twimg.com/profile_images/2574795248/38z1qad6un7unczrdabm_normal.jpeg","type":"rich"}