{"title":"JavaScript\u3068\u304bjQuery\u3068\u304b\u3088\u304f\u308f\u304b\u3089\u3093","provider_url":"https://hatena.blog","blog_title":"\u65e5\u3005\u91cf\u7523","published":"2012-01-21 03:14:05","type":"rich","provider_name":"Hatena Blog","height":"190","blog_url":"https://ryozi.hatenadiary.jp/","version":"1.0","author_url":"https://blog.hatena.ne.jp/ryousanngata/","image_url":null,"width":"100%","url":"https://ryozi.hatenadiary.jp/entry/20120121/1327083245","author_name":"ryousanngata","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fryozi.hatenadiary.jp%2Fentry%2F20120121%2F1327083245\" title=\"JavaScript\u3068\u304bjQuery\u3068\u304b\u3088\u304f\u308f\u304b\u3089\u3093 - \u65e5\u3005\u91cf\u7523\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"description":"jQuery\u3067\u540c\u540d\u306eclass\u5c5e\u6027\u3092\u6301\u3064\u8981\u7d20\u306b\u914d\u5217\u306e\u3088\u3046\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u304b\u3063\u305f\u3051\u3069\u3001 \u306a\u3093\u304b\u3088\u304f\u308f\u304b\u3089\u3093\u3051\u3069\u3082\u3001\u89aa\u8981\u7d20\u306fjQuery\u306eObject(\u914d\u5217)\u3063\u307d\u3044\u306e\u306b\u3001 \u5b50\u8981\u7d20\u304cget(index)\u3068\u304b[0]\u3067\u53d6\u5f97\u3067\u304d\u308b\u306e\u306f\u3001HTMLSelectElement\u3060\u3063\u305f\u308a\u3002 \u3048\u3001\u306a\u306b\u3053\u306e\u30b4\u30df \u89aa\u8981\u7d20\u5185\u306b\u5b50\u8981\u7d20\u3092\u9078\u3093\u3067\u9078\u629e\u3059\u308b\u306b\u306f\u3001$(\u30bb\u30ec\u30af\u30bf, \u89aa\u8981\u7d20);\u3067\u51fa\u6765\u308b\u306e\u306f\u3061\u3087\u3063\u3068\u826f\u304b\u3063\u305f\u3002 <select id=\"select\"> <option value=\"test1\">test1</option> <option value=\"test2\">test2</option> </select> <for\u2026"}