{"type":"rich","width":"100%","image_url":null,"published":"2018-03-13 18:05:49","categories":[],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnekogata.hatenablog.com%2Fentry%2F2018%2F03%2F13%2F180549\" title=\"JavaScript\u306ereduce\u304c\u3086\u308b\u3086\u308b\u578b\u3067\u3042\u308b\u3053\u3068\u306b\u52a9\u3051\u3089\u308c\u305f\u8a71 - \u732b\u578b\u306e\u84c4\u97f3\u6a5f\u306f 1 \u5206\u9593\u306b 45 \u56de\u306b\u3083\u3042\u3068\u9cf4\u304f\" 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://nekogata.hatenablog.com/entry/2018/03/13/180549","title":"JavaScript\u306ereduce\u304c\u3086\u308b\u3086\u308b\u578b\u3067\u3042\u308b\u3053\u3068\u306b\u52a9\u3051\u3089\u308c\u305f\u8a71","description":"\u67d0slack\u306b\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u304a\u984c\u304c\u51fa\u3055\u308c\u307e\u3057\u305f\u3002 \u304a\u984c [\"a\",\"b\",\"c\",\"d\"] \u307f\u305f\u3044\u306a\u914d\u5217\u304c\u3042\u3063\u305f\u6642\u306b { \"a\": { \"b\": { \"c\": \"d\" } } } \u307f\u305f\u304f\u5909\u63db\u3059\u308b\u826f\u3044\u65b9\u6cd5\u3092 JavaScript \u3067\u52df\u96c6\u3057\u307e\u3059 \u308f\u305f\u3057\u306e\u56de\u7b54 const reducer = (acc, el) => { const ret = {}; ret[el] = acc; return ret; }; [\"a\", \"b\", \"c\", \"d\"].reverse().reduce(reducer); \u4e0e\u592a\u8a71 \u666e\u901a\uff08\u666e\u901a\u3063\u3066\u306a\u3093\u3060\uff1f\uff09\u3001reduce\u306f\u914d\u5217\u306e\u8981\u7d20\u3092\u3072\u3068\u3064\u3072\u3068\u3064\u8210\u3081\u3066\u3001\u5909\u63db\u3092\u3057\u306a\u304c\u3089\u2026","height":"190","blog_title":"\u732b\u578b\u306e\u84c4\u97f3\u6a5f\u306f 1 \u5206\u9593\u306b 45 \u56de\u306b\u3083\u3042\u3068\u9cf4\u304f","author_name":"nkgt_chkonk","version":"1.0","blog_url":"https://nekogata.hatenablog.com/","author_url":"https://blog.hatena.ne.jp/nkgt_chkonk/","provider_url":"https://hatena.blog","provider_name":"Hatena Blog"}