{"type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fml-rand-note.hatenablog.com%2Fentry%2Fruby%2Fhash\" title=\"\u3010Ruby\u3011Hash\uff08\u30cf\u30c3\u30b7\u30e5\uff09\u306e\u4f7f\u3044\u65b9\uff5c\u4f5c\u6210\u30fb\u8ffd\u52a0\u30fb\u524a\u9664\u30fb\u691c\u7d22\u30fb\u30eb\u30fc\u30d7 - \u30e9\u30f3\u30c9ML\" 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://ml-rand-note.hatenablog.com/entry/ruby/hash","height":"190","published":"2026-06-15 00:00:00","blog_title":"\u30e9\u30f3\u30c9ML","provider_url":"https://hatena.blog","categories":["Ruby"],"provider_name":"Hatena Blog","title":"\u3010Ruby\u3011Hash\uff08\u30cf\u30c3\u30b7\u30e5\uff09\u306e\u4f7f\u3044\u65b9\uff5c\u4f5c\u6210\u30fb\u8ffd\u52a0\u30fb\u524a\u9664\u30fb\u691c\u7d22\u30fb\u30eb\u30fc\u30d7","version":"1.0","blog_url":"https://ml-rand-note.hatenablog.com/","image_url":null,"width":"100%","author_name":"round-rand","description":"Hash(\u30cf\u30c3\u30b7\u30e5)\u3068\u306f? \u30cf\u30c3\u30b7\u30e5\u306e\u751f\u6210 \u57fa\u672c\u5f62(\u30b7\u30f3\u30dc\u30eb\u3092\u30ad\u30fc\u306b\u3059\u308b\uff09 new\u30e1\u30bd\u30c3\u30c9 \u5024\u3092\u53d6\u5f97\u3059\u308b \u30ad\u30fc\u6307\u5b9a\u3067\u53d6\u5f97 fetch\uff1a\u30ad\u30fc\u304c\u5b58\u5728\u3057\u306a\u3044\u3068\u304d\u306e\u5024\u3092\u6319\u52d5\u3092\u6307\u5b9a keys\uff1a\u30ad\u30fc\u306e\u4e00\u89a7\u3092\u53d6\u5f97 values\uff1a\u5024\u3092\u4e00\u89a7\u3067\u53d6\u5f97 has_key?\uff1a\u30ad\u30fc\u306e\u5b58\u5728\u3092\u78ba\u8a8d has_value?\uff1a\u5024\u306e\u5b58\u5728\u3092\u78ba\u8a8d \u8981\u7d20\u3092\u524a\u9664\u3059\u308b delete\uff1a\u30ad\u30fc\u6307\u5b9a\u3067\u524a\u9664 delete_if\uff1a\u30d6\u30ed\u30c3\u30af\u3092\u8a55\u4fa1\u3057\u305f\u5024\u304c\u771f\u306b\u306a\u308b\u8981\u7d20\u3092\u9664\u5916 \u5909\u63db\u3059\u308b to_a\uff1a\u914d\u5217\u3078\u306e\u5909\u63db invert \u30cf\u30c3\u30b7\u30e5\u306e\u7d50\u5408\uff1amerge \u30cf\u30c3\u30b7\u30e5\u3092\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u3059\u308b each each_key each_value \u53c2\u8003 Hash(\u30cf\u30c3\u30b7\u30e5)\u3068\u306f? \u2026","author_url":"https://blog.hatena.ne.jp/round-rand/"}