{"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech.fun-toy-life.com%2Fentry%2F2026%2F06%2F18%2F220733\" title=\"React TypeScript\uff1auseState\u30fbuseRef\u30fbProps \u306e\u578b\u6307\u5b9a\u307e\u3068\u3081 - Engineering Tech Dojo\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"React TypeScript\uff1auseState\u30fbuseRef\u30fbProps \u306e\u578b\u6307\u5b9a\u307e\u3068\u3081","url":"https://tech.fun-toy-life.com/entry/2026/06/18/220733","author_url":"https://blog.hatena.ne.jp/plarail_hangout/","description":"React TypeScript\uff1auseState\u30fbuseRef\u30fbProps \u306e\u578b\u6307\u5b9a\u307e\u3068\u3081 React \u3068 TypeScript \u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u304d\u306b\u8ff7\u3044\u3084\u3059\u3044\u578b\u6307\u5b9a\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u307e\u3068\u3081\u307e\u3059\u3002 useState \u306e\u578b\u6307\u5b9a \u521d\u671f\u5024\u304b\u3089\u578b\u304c\u63a8\u8ad6\u3055\u308c\u308b \u5358\u7d14\u306a\u5024\u306f\u63a8\u8ad6\u306b\u4efb\u305b\u3066\u66f8\u3051\u307e\u3059\u3002 const [count, setCount] = useState(0) // number const [name, setName] = useState(\"\") // string const [flag, setFlag] = useState(false) // boolean null \u3092\u542b\u3080\u5834\u5408\u306f\u660e\u793a\u2026","width":"100%","blog_url":"https://tech.fun-toy-life.com/","author_name":"plarail_hangout","height":"190","published":"2026-06-18 22:07:33","blog_title":"Engineering Tech Dojo","categories":["React","TypeScript"],"provider_name":"Hatena Blog","provider_url":"https://hatena.blog","version":"1.0","type":"rich"}