{"categories":[],"provider_name":"Hatena Blog","image_url":null,"blog_title":"\u4e07\u5e74\u7d20\u4eba\u304b\u3089Hacker\u3078\u306e\u9053","blog_url":"https://shinriyo.hateblo.jp/","url":"https://shinriyo.hateblo.jp/entry/20130716/p1","published":"2013-07-16 00:00:02","author_name":"shinriyo","width":"100%","version":"1.0","height":"190","description":"\u7bc4\u56f2\u30aa\u30d6\u30b8\u30a7\u30af\u30c8range\u306b\u3042\u308binject\u30e1\u30bd\u30c3\u30c9\u304c\u4f55\u304b\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u306e\u3067\u8abf\u3079\u305f http://d.hatena.ne.jp/poqute/20061218/p1 (1..3).inject {|r, i| r += i} \u3067\u3082 (1..3).inject(0) {|r, i| r += i} \u3082\u304a\u305d\u3089\u304f\u540c\u3058\u3002 inject\u306e\u5f15\u6570\u306f\u521d\u671f\u5024\u3002\u521d\u671f\u5024 init \u3092\u7701\u7565\u3057\u305f\u5834\u5408\u306f\u3001\u6700\u521d\u306b\u5148\u982d\u306e\u8981\u7d20\u3068 2 \u756a\u76ee\u306e\u8981\u7d20\u3092\u30d6\u30ed\u30c3\u30af\u306b\u6e21\u3055\u308c\u308b\u3002 [3, 2, 1].inject {|x, i| x * i } \u306e\u5834\u54083\u30682\u304c\u6e21\u3055\u308c\u308b\u3002 => 3 * 2 \u7d50\u679c\u306f6 \u6b21\u306f\u3001\u5148\u307b\u3069\u306e\u7d50\u679c6 * 1\u3068\u306a\u308b => \u2026","author_url":"https://blog.hatena.ne.jp/shinriyo/","type":"rich","title":"Ruby\u306einject","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshinriyo.hateblo.jp%2Fentry%2F20130716%2Fp1\" title=\"Ruby\u306einject - \u4e07\u5e74\u7d20\u4eba\u304b\u3089Hacker\u3078\u306e\u9053\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}