{"image_url":"https://m.media-amazon.com/images/I/51ZdmKnvu8L._SL500_.jpg","title":"TypeScript Array.filter \u306e\u578b\u3082\u3044\u3044\u611f\u3058\u306b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u305f\u3044","provider_name":"Hatena Blog","url":"https://chaika.hatenablog.com/entry/2023/11/06/083000","width":"100%","description":"API \u304b\u3089\u53d6\u5f97\u3057\u305f\u30c7\u30fc\u30bf\u304c string | undefined \u306e\u30ea\u30b9\u30c8\u3060\u3063\u305f\u306e\u3067 filter \u3067 typeof === 'string' \u306e\u3082\u306e\u3060\u3051\u306b\u3057\u305f\u306e\u3060\u3051\u30d5\u30a3\u30eb\u30bf\u30fc\u5f8c\u306e\u914d\u5217\u306e\u578b\u304c\u3046\u307e\u304f\u884c\u304b\u306a\u304b\u3063\u305f\u306e\u3067\u30e1\u30e2 \u554f\u984c: \u578b\u60c5\u5831\u304c\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3055\u308c\u306a\u3044 const data = ['\u661f\u5bae\u3044\u3061\u3054', '\u9727\u77e2\u3042\u304a\u3044', undefined, '\u7d2b\u5439\u862d', undefined]; const res = data.filter((item) => typeof item === 'string'); // res: (string | undefined)[] console.log(res)\u2026","version":"1.0","type":"rich","provider_url":"https://hatena.blog","published":"2023-11-06 08:30:00","author_url":"https://blog.hatena.ne.jp/kikiki-kiki/","categories":["TypeScript","JavaScript"],"blog_title":"\u304b\u3082\u30e1\u30e2","author_name":"kikiki-kiki","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fchaika.hatenablog.com%2Fentry%2F2023%2F11%2F06%2F083000\" title=\"TypeScript Array.filter \u306e\u578b\u3082\u3044\u3044\u611f\u3058\u306b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u305f\u3044 - \u304b\u3082\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://chaika.hatenablog.com/","height":"190"}