{"width":"100%","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdeveloper.hatenastaff.com%2Fentry%2F2020%2F12%2F12%2F121212\" title=\"TypeScript \u3067 querySelector \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3068\u304d\u306b\u578b\u5f15\u6570\u3092\u6307\u5b9a\u3059\u308b - Hatena Developer Blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/nanto_vi/","image_url":null,"type":"rich","url":"https://developer.hatenastaff.com/entry/2020/12/12/121212","version":"1.0","categories":["\u306f\u3066\u306a\u30a8\u30f3\u30b8\u30cb\u30a2\u30a2\u30c9\u30d9\u30f3\u30c8\u30ab\u30ec\u30f3\u30c0\u30fc2020"],"provider_url":"https://hatena.blog","description":"\u3053\u3093\u306b\u3061\u306f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u8077\u306e id:nanto_vi \u3067\u3059\u3002(\u3053\u306e\u8a18\u4e8b\u306f\u3001\u306f\u3066\u306a\u30a8\u30f3\u30b8\u30cb\u30a2 Advent Calendar 2020 \u306e 12 \u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002\u6628\u65e5\u306f id:cohalz \u3055\u3093\u306b\u3088\u308b\u300cWeb\u30b5\u30fc\u30d3\u30b9\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306b\u3064\u3044\u3066\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u300d\u3067\u3057\u305f\u3002) \u7d50\u8ad6 TypeScript \u3067 querySelector\u3001querySelectorAll \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u3068\u304d\u306f\u3001\u578b\u5f15\u6570\u3092\u6307\u5b9a\u3057\u307e\u3057\u3087\u3046 (\u30e1\u30bd\u30c3\u30c9\u540d\u306e\u76f4\u5f8c\u306e < > \u3067\u56f2\u3093\u3060\u90e8\u5206\u3067\u3059)\u3002 const foo = document.querySelector<HTMLElement>('.foo'); if (foo) { fo\u2026","blog_title":"Hatena Developer Blog","title":"TypeScript \u3067 querySelector \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3068\u304d\u306b\u578b\u5f15\u6570\u3092\u6307\u5b9a\u3059\u308b","blog_url":"https://developer.hatenastaff.com/","published":"2020-12-12 12:12:12","author_name":"nanto_vi","provider_name":"Hatena Blog"}