{"id":55663,"date":"2024-03-11T18:36:42","date_gmt":"2024-03-11T09:36:42","guid":{"rendered":"https:\/\/kinqsta.com\/jp\/?p=55663&#038;post_type=knowledgebase&#038;preview_id=55663"},"modified":"2025-10-02T04:45:22","modified_gmt":"2025-10-01T19:45:22","slug":"what-is-react-js","status":"publish","type":"post","link":"https:\/\/kinqsta.com\/jp\/blog\/what-is-react-js\/","title":{"rendered":"React.js\u3068\u306f\u2500\u4eba\u6c17\u306eJavaScript\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u8feb\u308b"},"content":{"rendered":"<p>\u8fd1\u5e74\u3001\u30a6\u30a7\u30d6\u958b\u767a\u696d\u754c\u306f\u7740\u5b9f\u306a\u6210\u9577\u3092\u9042\u3052\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6210\u9577\u304c\u7d9a\u304f\u306b\u3064\u308c\u3001\u30e6\u30fc\u30b6\u30fc\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u306a\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3084\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u8005\u3092\u652f\u63f4\u3059\u308b\u65b0\u305f\u306a\u6280\u8853\u304c\u6b21\u304b\u3089\u6b21\u3078\u3068\u767b\u5834\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u9577\u5e74\u306b\u308f\u305f\u308a\u3001<a href=\"https:\/\/kinqsta.com\/blog\/best-programming-language-to-learn\/\">\u30a6\u30a7\u30d6\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e<\/a>\u304c\u65b0\u305f\u306a\u6a5f\u80fd\u3092\u751f\u307f\u51fa\u3057\u3001\u3088\u308a\u591a\u304f\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u304c\u30a6\u30a7\u30d6\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u4f5c\u6210\u306b\u4f7f\u7528\u3055\u308c\u3001\u3055\u3089\u306b\u306f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u65e2\u5b58\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306b\u57fa\u3065\u3044\u3066\u69cb\u7bc9\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u4eca\u56de\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u69cb\u7bc9\u306b\u4f7f\u7528\u3055\u308c\u308b<a href=\"https:\/\/insights.stackoverflow.com\/survey\/2021#section-most-popular-technologies-web-frameworks\" target=\"_blank\" rel=\"noopener noreferrer\">\u4eba\u6c17\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u30d9\u30fc\u30b9\u306eJavaScript\u30e9\u30a4\u30d6\u30e9\u30ea<\/a>\u3067\u3042\u308bReact\u306b\u3064\u3044\u3066\u3054\u8aac\u660e\u3057\u307e\u3059\u3002\u521d\u5fc3\u8005\u5411\u3051\u3067\u3082\u3042\u308a\u3001\u7d4c\u9a13\u8c4a\u5bcc\u306aReact\u958b\u767a\u8005\u306e\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3068\u3057\u3066\u3082\u3054\u6d3b\u7528\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p>\n<p>React\u306e\u7279\u5fb4\u3001\u9577\u6240\u3068\u77ed\u6240\u3001React\u306e\u4eba\u6c17\u306e\u7406\u7531\u3001React\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u4f7f\u7528\u65b9\u6cd5\u306b\u8feb\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u5b9f\u7528\u7684\u306a\u30b3\u30fc\u30c9\u306e\u4f8b\u3092\u7528\u3044\u3066React\u306e\u30b3\u30a2\u6a5f\u80fd\u3092\u3044\u304f\u3064\u304b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u89e3\u8aac\u3092\u8aad\u307f\u7d42\u3048\u308b\u9803\u306b\u306f\u3001React\u3068\u306f\u4f55\u306a\u306e\u304b\u3001\u3069\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u306e\u304b\u3092\u7406\u89e3\u3057\u3001\u4eca\u5f8c\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u69cb\u7bc9\u306bReact\u3092\u4f7f\u7528\u3059\u308b\u6e96\u5099\u304c\u6574\u3063\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<div><\/div><kinsta-auto-toc heading=\"Table of Contents\" exclude=\"last\" list-style=\"arrow\" selector=\"h2\" count-number=\"-1\"><\/kinsta-auto-toc>\n<h2>React\u3068\u306f<\/h2>\n<p>React.js\u306f\u3001\u4e00\u822c\u7684\u306b\u5358\u306b\u300cReact\u300d\u3068\u547c\u3070\u308c\u3001\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u69cb\u7bc9\u306b\u4f7f\u7528\u3055\u308c\u308b<a href=\"https:\/\/kinqsta.com\/jp\/blog\/javascript-libraries\/\" target=\"_blank\" rel=\"noopener noreferrer\">JavaScript\u30e9\u30a4\u30d6\u30e9\u30ea<\/a>\u3067\u3059\u3002React\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u518d\u5229\u7528\u53ef\u80fd\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5229\u7528\u3057\u307e\u3059\u3002\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u30d0\u30fc\u306b\u306f\u3042\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u3001\u30d5\u30c3\u30bf\u30fc\u306b\u306f\u5225\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u3001\u30e1\u30a4\u30f3\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u306f\u5225\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u3001\u3068\u3044\u3063\u305f\u5177\u5408\u3067\u3059\u3002\u3053\u308c\u306b\u3064\u3044\u3066\u306f\u3001\u5f8c\u8ff0\u3059\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u6271\u3046\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u8aad\u3080\u3053\u3068\u3067\u6df1\u304f\u7406\u89e3\u3067\u304d\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<p>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u300c\u518d\u5229\u7528\u300d\u306b\u3088\u308a\u3001\u7e70\u308a\u8fd4\u3057\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u958b\u767a\u304c\u697d\u306b\u306a\u308a\u307e\u3059\u3002\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30ed\u30b8\u30c3\u30af\uff08\u3069\u3053\u304c\u3069\u3046\u6a5f\u80fd\u3059\u308b\u304b\u306e\u8a2d\u8a08\u56f3\u306e\u3088\u3046\u306a\u3082\u306e\uff09\u3092\u4f5c\u6210\u3057\u3066\u3001\u5fc5\u8981\u3068\u3055\u308c\u308b\u90e8\u5206\u306b\u30b3\u30fc\u30c9\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u3060\u3051\u3067OK\u3067\u3059\u3002<\/p>\n<p>React\u306f\u307e\u305f\u3001\u30b7\u30f3\u30b0\u30eb\u30da\u30fc\u30b8\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30da\u30fc\u30b8\u304c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u308b\u305f\u3073\u306b\u30b5\u30fc\u30d0\u30fc\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001\u30da\u30fc\u30b8\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u304cReact\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304b\u3089\u76f4\u63a5\u8aad\u307f\u8fbc\u307e\u308c\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u30da\u30fc\u30b8\u5168\u4f53\u306e\u518d\u8aad\u307f\u8fbc\u307f\u304c\u767a\u751f\u305b\u305a\u3001<a href=\"https:\/\/kinqsta.com\/jp\/blog\/react-conditional-render\/\">\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0<\/a>\u304c\u9ad8\u901f\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u591a\u304f\u306e\u5834\u5408\u3001React\u30a2\u30d7\u30ea\u306e\u69cb\u7bc9\u306b\u4f7f\u7528\u3055\u308c\u308b\u69cb\u6587\u306fJSX\uff08JavaScript XML\uff09\u3068\u547c\u3070\u308c\u3001\u7c21\u5358\u306b\u8a00\u3048\u3070<a href=\"https:\/\/kinqsta.com\/jp\/blog\/next-js\/\">JavaScript<\/a>\u306e\u69cb\u6587\u62e1\u5f35\u3067\u3059\u3002\u3053\u308c\u3092\u4f7f\u3063\u3066\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3067\u3001JavaScript\u306e\u30ed\u30b8\u30c3\u30af\u3068\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u30ed\u30b8\u30c3\u30af\u306e\u4e21\u65b9\u3092\u81ea\u7531\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002JSX\u3092\u4f7f\u3048\u3070\u3001\u4f8b\u3048\u3070<code>document.getElementById<\/code>\u3001<code>querySelector<\/code>\u3068\u3044\u3063\u305fDOM\u64cd\u4f5c\u306e\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066DOM\u3068\u3084\u308a\u3068\u308a\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>JSX\u306e\u4f7f\u7528\u306f\u53b3\u5bc6\u306b\u306f\u5fc5\u9808\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u3053\u308c\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067React\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306f\u3001React\u3067JSX\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306e\u4e00\u4f8b\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-js\">function App() {\n    const greetings = \"Hello World\";\n        return (\n            &lt;div className=\"App\"&gt;\n            &lt;h1&gt; {greetings} &lt;\/h1&gt;\n            &lt;\/div&gt;\n        );\n    }\n}<\/code><\/pre>\n<p>\u4e0a\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001React\u306e\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u30c6\u30ad\u30b9\u30c8\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3057\u3066\u3044\u307e\u3059\u3002\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u540d\u524d\u306f<code>App<\/code>\u3067\u3059\u3002<code>render()<\/code>\u95a2\u6570\u306e\u524d\u306b\u5909\u6570\uff08const\uff09\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u3053\u306e\u5909\u6570\u3092\u4e2d\u304b\u3063\u3053\u3092\u4f7f\u3063\u3066\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u306b\u6e21\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306fHTML\u3067\u306f\u306a\u304f\u3001JSX\u3092\u4f7f\u3063\u3066\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u69cb\u6587\u3067\u3059\u3002<\/p>\n<p>\u57fa\u672c\u69cb\u9020\u306b\u89e6\u308c\u305f\u3068\u3053\u308d\u3067\u3001\u6b21\u306fReact\u304c\u4fbf\u5229\u306a\u7406\u7531\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h2>\u306a\u305cReact\u304c\u4f7f\u308f\u308c\u3066\u3044\u308b\u306e\u304b<\/h2>\n<p>\u591a\u304f\u306e<a href=\"https:\/\/kinqsta.com\/blog\/web-developer-salary\/\" rel=\"noopener\">\u958b\u767a\u8005<\/a>\u304cReact\u3092\u597d\u3093\u3067\u4f7f\u3063\u3066\u3044\u308b\u306e\u306b\u306f\u3044\u304f\u3064\u3082\u306e\u7406\u7531\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u7fd2\u5f97\u3057\u3084\u3059\u3044<\/strong>\uff1aReact\u306f\u3001\u524d\u63d0\u6761\u4ef6\u3055\u3048\u628a\u63e1\u3057\u3066\u3044\u308c\u3070\u5b66\u3073\u3084\u3059\u304f\u7406\u89e3\u3057\u3084\u3059\u3044\u3067\u3059\u3002React\u306b\u306f\u3057\u3063\u304b\u308a\u3068\u3057\u305f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u304c\u3042\u308a\u3001\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3082\u6d3b\u767a\u3067\u3042\u308b\u3053\u3068\u304b\u3089\u30aa\u30f3\u30e9\u30a4\u30f3\u3067\u4ed6\u306e\u958b\u767a\u8005\u304c\u4f5c\u6210\u3057\u305f\u7121\u6599\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u8aad\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u518d\u5229\u7528\u53ef\u80fd\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/strong>\uff1aReact\u306e\u5404\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u306f\u72ec\u81ea\u306e\u30ed\u30b8\u30c3\u30af\u304c\u3042\u308a\u3001\u30a2\u30d7\u30ea\u306e\u3069\u3053\u3067\u3082\u7e70\u308a\u8fd4\u3057\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u540c\u3058\u30b3\u30fc\u30c9\u3092\u4f55\u5ea6\u3082\u66f8\u304d\u76f4\u3059\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>\u4ed5\u4e8b\u306e\u6a5f\u4f1a<\/strong>\uff1a\u73fe\u5728\u3001<a href=\"https:\/\/kinqsta.com\/blog\/frontend-developer\/\" rel=\"noopener\">\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30a6\u30a7\u30d6\u958b\u767a\u306e\u6c42\u4eba<\/a>\u306e\u591a\u304f\u3067\u3001React\u304c\u5fc5\u9808\u30b9\u30ad\u30eb\u306e1\u3064\u3068\u3057\u3066\u4f4d\u7f6e\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001React\u306e\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3057\u3001\u305d\u308c\u3092\u4f7f\u3063\u3066\u4ed5\u4e8b\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308c\u3070\u3001\u4ed5\u4e8b\u3092\u624b\u306b\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a<\/strong>\uff1aReact\u306b\u306f\u4eee\u60f3DOM\u304c\u63a1\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u30da\u30fc\u30b8\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u9ad8\u901f\u3067\u3059\u3002React Router\u306e\u3088\u3046\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3048\u3070\u3001\u30da\u30fc\u30b8\u306e\u518d\u8aad\u307f\u8fbc\u307f\u306a\u3057\u306b\u30da\u30fc\u30b8\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>\u5e45\u5e83\u3044\u62e1\u5f35\u6027<\/strong>\uff1aReact\u306f\u8a00\u3046\u306a\u308c\u3070\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306eUI\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3059\u308b\u3053\u3068\u306b\u7279\u5316\u3057\u305f\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002\u30da\u30fc\u30b8\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3084\u30c7\u30b6\u30a4\u30f3\u30e9\u30a4\u30d6\u30e9\u30ea\u306a\u3069\u3001\u3069\u306e<a href=\"https:\/\/kinqsta.com\/jp\/blog\/web-development-tools\/\" rel=\"noopener\">\u30c4\u30fc\u30eb<\/a>\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u304b\u306f\u500b\u3005\u306e\u958b\u767a\u8005\u6b21\u7b2c\u3067\u3059\u3002<\/li>\n<\/ul>\n<h2>\u8ab0\u304cReact\u3092\u4f7f\u3063\u3066\u3044\u308b\u306e\u304b<\/h2>\n<p>React\u306f\u3001Facebook\u3001Netflix\u3001Instagram\u3001Yahoo\u3001Uber\u3001The New York Times\u306a\u3069\u306e\u3088\u3046\u306a\u4e16\u754c\u7684\u4f01\u696d\u3067\u591a\u304f\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u8a18\u306e\u4f01\u696d\u3059\u3079\u3066\u304cReact\u3092\u4f7f\u3063\u3066\u88fd\u54c1\u5168\u4f53\u3092\u69cb\u7bc9\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u6280\u8853\u306e\u4e00\u90e8\u3068\u3057\u3066React\u304c\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002React\u306e\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3001\u4f7f\u3044\u3084\u3059\u3055\u3001\u62e1\u5f35\u6027\u306b\u6ce8\u76ee\u304c\u96c6\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>React\u306e\u4f7f\u7528\u4f8b<\/h2>\n<p>React\u306f\u4e00\u822c\u7684\u306b\u3001\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff08\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\uff09\u3092\u69cb\u7bc9\u3059\u308b\u306e\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30da\u30fc\u30b8\u306e\u9ad8\u901f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u304c\u7279\u5fb4\u3067\u3059\u3002React\u306f\u30a6\u30a7\u30d6\u4e0a\u3067\u6a5f\u80fd\u3059\u308b\u3042\u3089\u3086\u308b\u30b5\u30fc\u30d3\u30b9\u306e\u69cb\u7bc9\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>React\u3092\u4f7f\u3063\u3066\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u97f3\u697d\u30d7\u30ec\u30fc\u30e4\u30fc\u30a2\u30d7\u30ea<\/li>\n<li>SNS\u30a2\u30d7\u30ea<\/li>\n<li>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30c1\u30e3\u30c3\u30c8\u30a2\u30d7\u30ea<\/li>\n<li><a href=\"https:\/\/kinqsta.com\/blog\/what-is-a-full-stack-developer\/\">\u30d5\u30eb\u30b9\u30bf\u30c3\u30af<\/a>\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea<\/li>\n<li><a href=\"https:\/\/kinqsta.com\/jp\/blog\/ecommerce-hosting\/\">EC\uff08\u30aa\u30f3\u30e9\u30a4\u30f3\u30b7\u30e7\u30c3\u30d7\uff09\u30a2\u30d7\u30ea<\/a><\/li>\n<li>\u5929\u6c17\u4e88\u5831\u30a2\u30d7\u30ea<\/li>\n<li>ToDo\u7ba1\u7406\u30a2\u30d7\u30ea<\/li>\n<\/ul>\n<h2>React\u306e\u7279\u5fb4<\/h2>\n<p>React\u306b\u306f\u958b\u767a\u8005\u306b\u4eba\u6c17\u306e\u7d20\u6674\u3089\u3057\u3044\u6a5f\u80fd\u304c\u6570\u591a\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>React\u306e\u4e2d\u5fc3\u7684\u306a\u6a5f\u80fd\u3084\u7279\u5fb4\u3092\u3044\u304f\u3064\u304b\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>JSX<\/strong>\uff1aES6\uff08ECMAScript 2015\uff09\u306e\u6a5f\u80fd\u3092\u62e1\u5f35\u3057\u305fJavaScript\u69cb\u6587\u62e1\u5f35\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001JavaScript\u306e\u30ed\u30b8\u30c3\u30af\u3068\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u3092\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u5185\u3067\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>\u4eee\u60f3DOM<\/strong>\uff1a\u7c21\u5358\u306b\u8a00\u3048\u3070DOM\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30d4\u30fc\u3067\u3001\u5909\u66f4\u304c\u52a0\u3048\u3089\u308c\u305f\u3068\u304d\u306b\u5bfe\u5fdc\u3059\u308b\u304b\u305f\u3061\u3067\u30da\u30fc\u30b8\u3092\u66f4\u65b0\u3057\u518d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u6700\u65b0\u306e\u72b6\u614b\u3092\u5143\u306eDOM\u3068\u6bd4\u8f03\u3057\u3066\u3001\u5909\u66f4\u3068\u540c\u671f\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001<a href=\"https:\/\/kinqsta.com\/jp\/learn\/page-speed\/\" rel=\"noopener\">\u30da\u30fc\u30b8\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u52b9\u7387\u7684\u304b\u3064\u9ad8\u901f<\/a>\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/strong>\uff1aReact\u30a2\u30d7\u30ea\u306f\u3001\u30ed\u30b8\u30c3\u30af\u3068UI\u3092\u6301\u3064\u518d\u5229\u7528\u53ef\u80fd\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4ed6\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u3088\u3046\u306b\u30b3\u30fc\u30c9\u304c\u91cd\u8907\u3059\u308b\u3053\u3068\u304c\u5c11\u306a\u304f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u7dad\u6301\u306b\u52b9\u679c\u7684\u3067\u3059\u3002<\/li>\n<\/ul>\n<h2>React\u306e\u9577\u6240\u3068\u77ed\u6240<\/h2>\n<p>React\u306fUI\u3092\u69cb\u7bc9\u3059\u308b\u306e\u306b\u6709\u7528\u3067\u3059\u304c\u3001\u5b9f\u969b\u306b\u3053\u308c\u3092\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u63a1\u7528\u3059\u308b\u304b\u3069\u3046\u304b\u306f\u958b\u767a\u8005\u3084\u500b\u5225\u306e\u8981\u4ef6\u6b21\u7b2c\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001React\u306e\u9577\u6240\u3068\u77ed\u6240\u306b\u3064\u3044\u3066\u304a\u8a71\u3057\u3057\u307e\u3059\u3002<\/p>\n<p>React\u306e\u9577\u6240\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li><a href=\"https:\/\/kinqsta.com\/blog\/vue-vs-react\/\">React<\/a>\u306f\u5b66\u3073\u3084\u3059\u304f\u7406\u89e3\u3057\u3084\u3059\u3044<\/li>\n<li>React\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306f\u6d3b\u767a\u3067\u5fc5\u8981\u306a\u3068\u304d\u306b\u52a9\u3051\u3092\u6c42\u3081\u3089\u308c\u308b<\/li>\n<li>React\u958b\u767a\u8005\u306b\u306f\u591a\u304f\u306e\u4ed5\u4e8b\u306e\u6a5f\u4f1a\u304c\u3042\u308b<\/li>\n<li>React\u3092\u4f7f\u3063\u3066\u30a2\u30d7\u30ea\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6539\u5584\u3067\u304d\u308b<\/li>\n<\/ol>\n<p>React\u306e\u77ed\u6240\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>JavaScript\uff08\u7279\u306bES6\uff09\u3092\u3057\u3063\u304b\u308a\u7406\u89e3\u3057\u3066\u3044\u306a\u3044\u521d\u5fc3\u8005\u306f\u3001React\u3092\u7406\u89e3\u3059\u308b\u306e\u304c\u96e3\u3057\u3044\u3068\u611f\u3058\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n<li>React\u306b\u306f\u3001\u5305\u62ec\u7684\u306a\u72b6\u614b\u7ba1\u7406\u3084\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u3088\u3046\u306a\u4e00\u822c\u7684\u306a\u6a5f\u80fd\u304c\u306a\u3044<\/li>\n<\/ol>\n<h2>React\u306e\u5229\u7528\u3092\u958b\u59cb\u3059\u308b<\/h2>\n<p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u307e\u305aReact\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306e\u524d\u63d0\u6761\u4ef6\u3001\u305d\u3057\u3066\u3001React\u30a2\u30d7\u30ea\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u4f5c\u6210\u3001\u30a4\u30d9\u30f3\u30c8\u306e\u51e6\u7406\u3001React\u3067\u306e\u30b9\u30c6\u30fc\u30c8\uff08state\uff09\u3001<a href=\"https:\/\/kinqsta.com\/blog\/react-usecallback\/\">\u30d5\u30c3\u30af\uff08hook\uff09<\/a>\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\uff08props\uff09\u306e\u64cd\u4f5c\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3>React\u3092\u4f7f\u3046\u305f\u3081\u306e\u524d\u63d0\u6761\u4ef6<\/h3>\n<p>React\u3092\u4f7f\u7528\u3059\u308b\u524d\u306b\u3001<a href=\"https:\/\/kinqsta.com\/blog\/scripting-languages\/\" rel=\"noopener\">JavaScript<\/a>\u3092\u5341\u5206\u306b\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001JavaScript\u306e\u4ee5\u4e0b\u306e\u6a5f\u80fd\u3084\u7279\u5fb4\u306b\u3064\u3044\u3066\u628a\u63e1\u3057\u3066\u304a\u304f\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30a2\u30ed\u30fc\u95a2\u6570<\/li>\n<li>\u30ec\u30b9\u30c8\uff08Rest\uff09\u6f14\u7b97\u5b50<\/li>\n<li><a href=\"https:\/\/kinqsta.com\/jp\/blog\/spread-operator-javascript\/\">\u30b9\u30d7\u30ec\u30c3\u30c9\uff08Spread\uff09\u6f14\u7b97\u5b50<\/a><\/li>\n<li>\u30e2\u30b8\u30e5\u30fc\u30eb<\/li>\n<li>\u5206\u5272\u4ee3\u5165<\/li>\n<li>\u914d\u5217\u30e1\u30bd\u30c3\u30c9<\/li>\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30ea\u30c6\u30e9\u30eb<\/li>\n<li>\u30d7\u30ed\u30df\u30b9\uff08Promise\uff09<\/li>\n<li><code>let<\/code>\u3068<code>const<\/code><\/li>\n<\/ul>\n<p>\u4e0a\u8a18\u306e\u307b\u3068\u3093\u3069\u304cES6\u306b\u8a72\u5f53\u3057\u307e\u3059\u3002\u307e\u305f\u3001<a href=\"https:\/\/kinqsta.com\/jp\/blog\/what-is-jsx\/\">JSX\u69cb\u6587<\/a>\u306e\u4e00\u90e8\u3092\u69cb\u6210\u3057\u3066\u3044\u308b\u305f\u3081<a href=\"https:\/\/kinqsta.com\/blog\/learn-html\/\" target=\"_blank\" rel=\"noopener noreferrer\">HTML\u306e\u4f7f\u7528<\/a>\u7d4c\u9a13\u3082\u5fc5\u9808\u3067\u3059\u3002<\/p>\n<h3>React\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65b9\u6cd5<\/h3>\n<p><a href=\"https:\/\/kinqsta.com\/jp\/blog\/install-react\/\">React\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/a>\u3059\u308b\u524d\u306b\u3001<a href=\"https:\/\/kinqsta.com\/jp\/blog\/how-to-install-node-js\/\" rel=\"noopener\">\u304a\u4f7f\u3044\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306bNode.js\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/a>\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u5b8c\u4e86\u3057\u305f\u3089\u30bf\u30fc\u30df\u30ca\u30eb\u3067\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-bash\">node -v<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308bNode.js\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u8868\u793a\u3055\u308c\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<p>\u6b21\u306b\u3001React\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u958b\u59cb\u3059\u308b\u305f\u3081\u306b\u5225\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a\u3001\u65b0\u898f\u30d5\u30a9\u30eb\u30c0\u3092\u4f5c\u6210\u3059\u308b\u304b\u3001React\u30a2\u30d7\u30ea\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u3044\u5834\u6240\u306b\u79fb\u52d5\u3057\u3001\u30bf\u30fc\u30df\u30ca\u30eb\u3067\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-bash\">npx create-react-app react-kit<\/code><\/pre>\n<p>\u4e0a\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001react\u304c<strong>react-kit<\/strong>\u3068\u3044\u3046\u30d5\u30a9\u30eb\u30c0\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u5b8c\u4e86\u3057\u305f\u3089\u3001\u65b0\u3057\u304f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305fReact\u30d5\u30a9\u30eb\u30c0\u3092\u304a\u597d\u307f\u306e<a href=\"https:\/\/kinqsta.com\/jp\/blog\/best-text-editors\/\" rel=\"noopener\">\u30b3\u30fc\u30c9\u30a8\u30c7\u30a3\u30bf<\/a>\u3067\u958b\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u306fVisual Studio Code\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002Visual Studio Code\u306b\u306f\u30bf\u30fc\u30df\u30ca\u30eb\u304c\u7d71\u5408\u3055\u308c\u3066\u3044\u307e\u3059\u3002Git Bash\u3084CMD\u306e\u3088\u3046\u306a\u5225\u306e\u30bf\u30fc\u30df\u30ca\u30eb\u3092\u4f7f\u3046\u5834\u5408\u306f\u3001React\u30a2\u30d7\u30ea\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u79fb\u52d5\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre><code class=\"language-bash\">npm run start<\/code><\/pre>\n<p>\u3053\u306e\u30b3\u30de\u30f3\u30c9\u3067\u958b\u767a\u30b5\u30fc\u30d0\u30fc\u304c\u8d77\u52d5\u3057\u307e\u3059\u3002\u3057\u3070\u3089\u304f\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u30da\u30fc\u30b8\u304c\u30d6\u30e9\u30a6\u30b6\u306e<strong>localhost:3000<\/strong>\u3067\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_124283\" aria-describedby=\"caption-attachment-124283\" style=\"width: 1354px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-124283 size-full\" src=\"https:\/\/kinqsta.com\/wp-content\/uploads\/2022\/05\/react-npm-start.png\" alt=\"\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f8c\u306eReact\u958b\u767a\u30b5\u30fc\u30d0\u30fc\" width=\"1354\" height=\"614\"><figcaption id=\"caption-attachment-124283\" class=\"wp-caption-text\">\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f8c\u306eReact\u958b\u767a\u30b5\u30fc\u30d0\u30fc<\/figcaption><\/figure>\n<p>\u3053\u3053\u307e\u3067\u304f\u308c\u3070React\u30a2\u30d7\u30ea\u958b\u767a\u306e\u6e96\u5099\u306f\u5b8c\u4e86\u3067\u3059\u3002<\/p>\n<p>\u30d5\u30a9\u30eb\u30c0\u69cb\u9020\u3092\u898b\u3066\u307f\u308b\u3068\u3001<strong>public<\/strong>\u3068\u3044\u3046\u30d5\u30a9\u30eb\u30c0\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30d5\u30a9\u30eb\u30c0\u306b\u306f<strong> index.html<\/strong>\u30d5\u30a1\u30a4\u30eb\u304c\u3042\u308a\u3001\u305d\u306e\u4e2d\u306b\u3042\u308b\uff08\u3053\u308c\u304b\u3089\u8a18\u8ff0\u3057\u3066\u3044\u304f\uff09\u30b3\u30fc\u30c9\u304c\u30d6\u30e9\u30a6\u30b6\u306b\u914d\u4fe1\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong>src<\/strong>\u30d5\u30a9\u30eb\u30c0\u306b\u306f\u3001\u3059\u3079\u3066\u306e\u30ed\u30b8\u30c3\u30af\u3001\u30b9\u30bf\u30a4\u30eb\u3001\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u304c\u683c\u7d0d\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30d5\u30a9\u30eb\u30c0\u306e<strong>App.js<\/strong>\u30d5\u30a1\u30a4\u30eb\u304c\u30eb\u30fc\u30c8\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u3053\u306e\u4e2d\u306b\u3042\u308b\u30b3\u30fc\u30c9\u3092\u8868\u793a\u3057\u305f\u7d50\u679c\u304c\u4e0a\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002<\/p>\n<p><strong>App.js<\/strong>\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304d\u3001\u30d5\u30a1\u30a4\u30eb\u306b\u5909\u66f4\u3092\u52a0\u3048\u4fdd\u5b58\u3059\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u81ea\u52d5\u7684\u306b\u305d\u306e\u5185\u5bb9\u304c\u53cd\u6620\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u30b3\u30fc\u30c9\u306e\u8a18\u8ff0\u3078\u3068\u9032\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>React\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/h3>\n<p>React\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u3064\u3044\u3066\u3067\u3059\u3002\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u306f\u3001\u4e3b\u306b\u30af\u30e9\u30b9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e2\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002React\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306f\u73fe\u5728\u30d5\u30c3\u30af\uff08hook\uff09\u3092\u4f7f\u3063\u305f\u3082\u306e\u306b\u5237\u65b0\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u898b\u3089\u308c\u308b\u6a5f\u80fd\u3067\u3059\u3002\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306fReact\u30a2\u30d7\u30ea\u3067\u6700\u3082\u3088\u304f\u4f7f\u3046\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306a\u306e\u3067\u3001\u3053\u306e\u89e3\u8aac\u3067\u3082\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u4f7f\u3046\u3053\u3068\u306b\u3057\u307e\u3059\u3002<\/p>\n<p>\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306fJavaScript\u3067\u4f5c\u6210\u3055\u308c\u305f\u52d5\u7684\u306a\u5024\u3092\u7d44\u307f\u5408\u308f\u305b\u305f<a href=\"https:\/\/kinqsta.com\/blog\/xml-vs-html\/\">HTML\u30b3\u30fc\u30c9<\/a>\u3092\u8fd4\u3057\u307e\u3059\u3002\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3001JavaScript\u306e\u95a2\u6570\u306e\u3088\u3046\u306b\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<h3>React\u306e\u30af\u30e9\u30b9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u4f5c\u6210<\/h3>\n<p>\u5148\u306b\u9032\u3080\u524d\u306b\u3001\u53c2\u8003\u307e\u3067\u306bReact\u306e\u30af\u30e9\u30b9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u3059\u3079\u3066\u306e\u30af\u30e9\u30b9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u306f\u3001<code>React.Component<\/code>\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3068<code> render()  subclass.<\/code>\u3092\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-js\">class Student extends React.Component {\n    constructor() {\n        super();\n        this.state = {language: \"JavaScript\"};\n    }\n    render() {\n        return &lt;p&gt;{this.state.language}\u3092\u5b66\u7fd2\u4e2d\u3067\u3059...&lt;\/p&gt;;\n    }\n}<\/code><\/pre>\n<p>\u4e0a\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u306f\u300cJavaScript\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u306e\u5024\u3092\u6301\u3064<code>language<\/code>\u3068\u3044\u3046\u72b6\u614b\u5909\u6570\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u3053\u306e\u5909\u6570\u3092\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u3067\u4f7f\u7528\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u4f8b\u306f\u3001DOM\u30e1\u30bd\u30c3\u30c9\u3092\u53c2\u7167\u305b\u305a\u306bJavaScript\u3068HTML\u3092\u6df7\u5728\u3055\u305b\u308b\u65b9\u6cd5\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u304c\u30d6\u30e9\u30a6\u30b6\u306b\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u308b\u3068\u3001\u30da\u30fc\u30b8\u4e0a\u306b\u300cJavaScript\u3092\u5b66\u7fd2\u4e2d\u3067\u3059&#8230;\u300d\u3068\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>React\u306e\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u4f5c\u6210<\/h3>\n<p>\u7d9a\u3044\u3066\u306f\u3001\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u524d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u4f8b\u3092\u518d\u73fe\u3057\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306e\u95a2\u6570\u3092\u30d5\u30a1\u30a4\u30eb\u306b\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre><code class=\"language-js\">function Student() {\n    const language = \"JavaScript\";\n    return (\n        &lt;div&gt;\n        &lt;p&gt;I am learning { language } &lt;\/p&gt;\n        &lt;\/div&gt;\n    );\n}<\/code><\/pre>\n<p>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u540d\u524d\u306f\u540c\u3058\u3067<code>Student<\/code>\u3067\u3059\u3002\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u540d\u524d\u306f\u5e38\u306b\u5927\u6587\u5b57\u304b\u3089\u59cb\u3081\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u5909\u6570\u3082\u3001\u30d0\u30cb\u30e9JavaScript\uff08\u7d20\u306eJavaScript\uff09\u306eDOM\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066DOM\u3092\u64cd\u4f5c\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u524d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u884c\u3063\u305f\u3088\u3046\u306b\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u306b\u6e21\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067<code>Student<\/code>\u5909\u6570\u304c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u89e3\u8aac\u3092\u9032\u3081\u3066\u3044\u304f\u3068\u3001<code>useState<\/code>\u3068\u3044\u3046Hook\u3092\u4f7f\u3063\u3066\u30b9\u30c6\u30fc\u30c8\u5909\u6570\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>React\u3067\u30a4\u30d9\u30f3\u30c8\u3092\u6271\u3046<\/h3>\n<p>React\u3067\u4f7f\u7528\u3059\u308b\u30a4\u30d9\u30f3\u30c8\u306f\u3001<a href=\"https:\/\/kinqsta.com\/blog\/learn-html\/\">HTML<\/a>\u3067\u4f7f\u7528\u3059\u308b\u30a4\u30d9\u30f3\u30c8\u3068\u307e\u3063\u305f\u304f\u540c\u3058\u3067\u3059\u3002\u552f\u4e00\u306e\u9055\u3044\u3068\u3057\u3066\u3001React\u306e\u30a4\u30d9\u30f3\u30c8\u306f\u30ad\u30e3\u30e1\u30eb\u30b1\u30fc\u30b9\u3067\u8a18\u8ff0\u3057\u307e\u3059\u306e\u3067\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002\u3064\u307e\u308a\u3001\u300conclick\u300d\u306fReact\u3067\u306f\u300conClick\u300d\u3068\u306a\u308a\u3001\u300conchange\u300d\u306f\u300conChange\u300d\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>HTML\u30bf\u30b0\u306e\u5c5e\u6027\u3068\u3057\u3066\u30a4\u30d9\u30f3\u30c8\u3092\u6e21\u3059\u5834\u5408\u306f\u3001\u5f15\u7528\u7b26<code>onClick=\u201dchangeName\u201d<\/code>\u306e\u4ee3\u308f\u308a\u306b\u4e2d\u62ec\u5f27<code> onClick={changeName}<\/code>\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306b\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<strong>App.js<\/strong>\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-js\">import { useState } from \"react\";\nfunction App() {\n    const [name, setName] = useState(\"\u30b8\u30e7\u30f3\");\n    const changeName = () =&gt; {\n        setName(\"\u30b8\u30a7\u30fc\u30e0\u30b9\");\n    };\n    return (\n        &lt;div className=\u201dApp\u201d&gt;\n        &lt;p&gt;\u5f7c\u306e\u540d\u524d\u306f{name}\u3067\u3059\u3002&lt;\/p&gt;\n        &lt;button onClick={changeName}&gt;\u3053\u3053\u3092\u30af\u30ea\u30c3\u30af&lt;\/button&gt;\n        &lt;\/div&gt;\n    );\n}\nexport default App;<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u95a2\u6570\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u3068\u304d\u306b\u3053\u306e\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u30dc\u30bf\u30f3\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u3002\u3053\u3053\u3067\u4f7f\u7528\u3057\u3066\u3044\u308b\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u306f<code>onClick<\/code>\u3067\u3059\u3002<\/p>\n<p>\u95a2\u6570\u540d\u304c\u5f15\u7528\u7b26\u3067\u306f\u306a\u304f\u3001\u4e2d\u62ec\u5f27\u3067\u304f\u304f\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u306b\u304a\u6c17\u3065\u304d\u3067\u3057\u3087\u3046\u304b\u3002JSX\u3067\u306f\u3001\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u5909\u6570\u540d\u3084\u95a2\u6570\u540d\u306e\u3088\u3046\u306a\u52d5\u7684\u306a\u5024\u3092\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u306b\u6e21\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001HTML\u306e\u3088\u3046\u306b\u300cclass\u300d\u3092\u4f7f\u3046\u4ee3\u308f\u308a\u306b\u3001\u300cclassName\u300d\u3092\u4f7f\u3063\u3066\u3044\u308b\u70b9\u3082\u8981\u6ce8\u610f\u3067\u3059\u3002\u3053\u308c\u306f\u300cclass\u300d\u304cJavaScript\u306e\u4e88\u7d04\u8a9e\u3067\u3042\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u6700\u5f8c\u306e\u884c\u3067\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3067\u3001\u4ed6\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u306e\u30a4\u30f3\u30dd\u30fc\u30c8\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>React\u3067\u30b9\u30c6\u30fc\u30c8\u3092\u6271\u3046<\/h3>\n<p>React\u3067\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u72b6\u614b\u3092\u7ba1\u7406\u3059\u308b\u3068\u304d\u306f\u3001<code>useState<\/code>\u3068\u3044\u3046\u30d5\u30c3\u30af\u3092\u4f7f\u3044\u307e\u3059\u3002\u30d5\u30c3\u30af\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30af\u30e9\u30b9\u3092\u66f8\u304b\u305a\u306bReact\u306e\u6a5f\u80fd\u3092\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30d5\u30c3\u30af\u3092\u4f7f\u3048\u3070\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u72b6\u614b\u3092\u7ba1\u7406\u3057\u305f\u308a\u3001\u72b6\u614b\u5909\u6570\u304c\u521d\u3081\u3066\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u305f\u3068\u304d\u3084\u5909\u66f4\u3055\u308c\u305f\u3068\u304d\u306b\u7279\u5b9a\u306e\u30a8\u30d5\u30a7\u30af\u30c8\u3092\u5b9f\u884c\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u95a2\u6570\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b<code>useState<\/code>\u30d5\u30c3\u30af\u304c\u306a\u3051\u308c\u3070\u3001\u72b6\u614b\u5909\u6570\u306b\u52a0\u3048\u3089\u308c\u305f\u5909\u66f4\u306fDOM\u306b\u53cd\u6620\u3055\u308c\u305a\u72b6\u614b\u3082\u5909\u66f4\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre><code class=\"language-js\">import { useState } from \"react\";\nfunction App() {\n    const [name, setName] = useState(\"\u30b8\u30e7\u30f3\");\n    const changeName = () =&gt; {\n        setName(\"\u30b8\u30a7\u30fc\u30e0\u30b9\");\n    };\n    return (\n        &lt;div className=\u201dApp\u201d&gt;\n        &lt;p&gt;\u5f7c\u306e\u540d\u524d\u306f{name}\u3067\u3059\u3002&lt;\/p&gt;\n        &lt;button onClick={changeName}&gt;\u3053\u3053\u3092\u30af\u30ea\u30c3\u30af&lt;\/button&gt;\n        &lt;\/div&gt;\n    );\n}\nexport default App;<\/code><\/pre>\n<p>\u3067\u306f\u3001\u4eca\u3084\u3063\u305f\u3053\u3068\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305a\u3001<code>useState<\/code>\u30d5\u30c3\u30af\u3092React\u304b\u3089\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u3001<strong>name<\/strong>\u3068\u3044\u3046\u72b6\u614b\u5909\u6570\u3068\u3001<strong>name<\/strong>\u5909\u6570\u306e\u5024\u3092\u5909\u66f4\u3059\u308b\u305f\u3081\u306e\u95a2\u6570<strong>setName<\/strong>\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002name\u5909\u6570\u306e\u521d\u671f\u5024\u306f\u3001<code>useState<\/code>\u30d5\u30c3\u30af\u306b\u300c\u30b8\u30e7\u30f3\u300d\u3068\u3057\u3066\u683c\u7d0d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306b\u3001<strong>changeName<\/strong>\u3068\u3044\u3046\u95a2\u6570\u3092\u4f5c\u6210\u3057\u3001<strong>setName<\/strong>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066<strong>name<\/strong>\u5909\u6570\u306e\u5024\u3092\u5909\u66f4\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<p>\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u3067\u306f\u3001\u30dc\u30bf\u30f3\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u3068\u300c\u30b8\u30e7\u30f3\u300d\u304c \u300c\u30b8\u30a7\u30fc\u30e0\u30b9\u300d\u306b\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001React\u3067\u5225\u306e\u30d5\u30c3\u30af\u3092\u4f7f\u3046\u65b9\u6cd5\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3>React\u3067\u30d5\u30c3\u30af\u3092\u4f7f\u3046<\/h3>\n<p>\u524d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>useStatet<\/code>\u30d5\u30c3\u30af\u3092\u4f7f\u3063\u3066\u30a2\u30d7\u30ea\u306e\u72b6\u614b\u3092\u7ba1\u7406\u3059\u308b\u65b9\u6cd5\u3092\u898b\u307e\u3057\u305f\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>useEffect<\/code><a href=\"https:\/\/kinqsta.com\/jp\/blog\/react-useeffect\/\">\u30d5\u30c3\u30af<\/a>\u306e\u4f7f\u3044\u65b9\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p><code>useEffect<\/code>\u306f\u3001\u72b6\u614b\u306b\u5909\u5316\u304c\u767a\u751f\u3059\u308b\u305f\u3073\u306b\u30a8\u30d5\u30a7\u30af\u30c8\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u3001\u3053\u306e\u30d5\u30c3\u30af\u306f\u6700\u521d\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u6642\u3068\u3001\u72b6\u614b\u304c\u66f4\u65b0\u3055\u308c\u308b\u305f\u3073\u306b\u5b9f\u884c\u3055\u308c\u307e\u3059\u304c\u3001\u305d\u308c\u305e\u308c\u306e\u72b6\u614b\u5909\u6570\u306b\u30a8\u30d5\u30a7\u30af\u30c8\u3092\u8a2d\u5b9a\u3057\u7d10\u3065\u3051\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre><code class=\"language-js\">import { useState, useEffect } from \"react\";\nfunction App() {\n    const [day, setDay] = useState(1);\n    useEffect(() =&gt; {\n        console.log(`\u4eca\u65e5\u306f${day}\u65e5\u3067\u3059\u3002`);\n    });\n    return (\n        &lt;div&gt;\n        &lt;button onClick={() =&gt; setDay(day + 1)}&gt;\u30af\u30ea\u30c3\u30af\u3057\u30661\u65e5\u8ffd\u52a0&lt;\/button&gt;\n        &lt;\/div&gt;\n    );\n}\nexport default App;<\/code><\/pre>\n<p>\u307e\u305a\u6700\u521d\u306b\u3001<code>useEffect<\/code>\u30d5\u30c3\u30af\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u305f\u3073\u306b\u3001<strong>name<\/strong>\u5909\u6570\u304c1\u3064\u305a\u3064\u5897\u52a0\u3057\u3001\u3053\u306e<strong>name<\/strong>\u306e\u5024\u306e\u5909\u5316\u306b\u3088\u3063\u3066\u3001<code>useEffect<\/code>\u30d5\u30c3\u30af\u304c\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8a18\u9332\u3057\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001props\u3068\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u9593\u306e\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h3>React\u3067props\u3092\u4f7f\u3046<\/h3>\n<p>props\u3092\u4f7f\u3046\u3068\u3001\u3042\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304b\u3089\u5225\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u30c7\u30fc\u30bf\u3092\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30a2\u30d7\u30ea\u5185\u306e\u30c7\u30fc\u30bf\u306e\u6d41\u308c\u304c\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u306b\u306a\u308a\u4fdd\u5b88\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002props\u306f\u30d7\u30ed\u30d1\u30c6\u30a3\uff08properties\uff09\u306e\u7565\u3067\u3059\u3002<\/p>\n<p>props\u306e\u4f7f\u3044\u65b9\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>App.js<\/strong>\u30d5\u30a1\u30a4\u30eb\u306f\u3053\u306e\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-js\">function App() {\n    return (\n        &lt;div&gt;\n        &lt;\/div&gt;\n    );\n}\nexport default App;<\/code><\/pre>\n<p><strong>Bio.js<\/strong>\u3068\u3044\u3046\u5225\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-js\">function Bio() {\n    return (\n        &lt;div&gt;\n        &lt;p&gt;\u79c1\u306f\u30b8\u30e7\u30f3\u3067\u3059\u3002&lt;\/p&gt;\n        &lt;p&gt;JavaScript\u958b\u767a\u8005\u3092\u3057\u3066\u3044\u307e\u3059\u3002&lt;\/p&gt;\n        &lt;\/div&gt;\n    );\n}\nexport default Bio;<\/code><\/pre>\n<p>\u6b21\u306b\u3001\u3053\u306e<strong>Bio<\/strong>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092<strong>App<\/strong>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-js\">import Bio from \".\/Bio\";\nfunction App() {\n    return (\n        &lt;div className=\"App\"&gt;\n        &lt;Bio\/&gt;\n        &lt;\/div&gt;\n    );\n}\nexport default App;<\/code><\/pre>\n<p>\u6700\u521d\u306e\u884c\u3067<strong>Bio<\/strong>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u3053\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092<strong>App<\/strong>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e<code>div<\/code>\u30bf\u30b0\u306e\u9593\u306b\u914d\u7f6e\u3057\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u3067\u898b\u308b\u3068\u3001<strong>Bio<\/strong>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u4f5c\u6210\u3057\u305f\u30b3\u30fc\u30c9\u304c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3067\u3001React\u3067\u30b3\u30fc\u30c9\u304c\u3069\u306e\u3088\u3046\u306b\u518d\u5229\u7528\u3067\u304d\u308b\u304b\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u30b3\u30fc\u30c9\u306f\u9759\u7684\u306a\u3082\u306e\u3067\u3001\u3069\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u4f7f\u3063\u3066\u3082\u4e2d\u8eab\u306f\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3067\u306f\u3001\u540c\u3058\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u8abf\u6574\u3057\u306a\u304c\u3089\u4f7f\u3044\u5206\u3051\u305f\u3044\u5834\u5408\u306b\u975e\u52b9\u7387\u7684\u3067\u3059\u3002<\/p>\n<p>props\u3092\u4f7f\u3063\u3066\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>Bio.js<\/strong>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u6b21\u306e\u3088\u3046\u306b\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-js\">function Bio({name, language}) {\n    return (\n        &lt;div&gt;\n        &lt;p&gt;\u79c1\u306e\u540d\u524d\u306f{ name }\u3067\u3059\u3002&lt;\/p&gt;\n        &lt;p&gt;{ language }\u958b\u767a\u8005\u3092\u3057\u3066\u3044\u307e\u3059\u3002&lt;\/p&gt;\n        &lt;\/div&gt;\n    );\n\n}\nexport default Bio;<\/code><\/pre>\n<p>\u307e\u305a\u3001<code>name<\/code>\u3068<code>language<\/code>\u3092\u5206\u5272\u3057\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u6e21\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u3001\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u3067\u52d5\u7684\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30b3\u30fc\u30c9\u306e\u6700\u5f8c\u306e\u884c\u3067\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002<code> export default Bio;<\/code> \u306b\u3088\u308a\u3001\u305d\u306e\u30ed\u30b8\u30c3\u30af\u3092\u5fc5\u8981\u3068\u3059\u308b\u4ed6\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u30a4\u30f3\u30dd\u30fc\u30c8\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u73fe\u6642\u70b9\u3067\u306f\u3001\u8868\u793a\u3055\u308c\u308b\u5024\u306f\u3042\u308a\u307e\u305b\u3093\u3002<strong>App<\/strong>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u305d\u308c\u306e\u6307\u5b9a\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-js\">import Bio from \".\/Bio\";\nfunction App() {\n    return (\n        &lt;div className=\"App\"&gt;\n        &lt;Bio name=\"\u30b8\u30a7\u30fc\u30e0\u30b9\" language=\"Python\"\/&gt;\n        &lt;\/div&gt;\n    );\n}\nexport default App;<\/code><\/pre>\n<p><strong>Bio<\/strong>\u30bf\u30b0\u306b\u5148\u307b\u3069\u4f5c\u6210\u3057\u305fprops\u306b\u5bfe\u5fdc\u3059\u308b\u5c5e\u6027\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u5c5e\u6027\u306b\u6e21\u3057\u305f\u5024\u306f\u3059\u3079\u3066\u30d6\u30e9\u30a6\u30b6\u306b\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u4ed5\u7d44\u307f\u306f\u3001\u8907\u6570\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u7570\u306a\u308b\u30c7\u30fc\u30bf\u3092\u6307\u5b9a\u3057\u305f\u3044\u5834\u5408\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h2>\u3055\u3089\u306b\u5b66\u3076\u306b\u306f<\/h2>\n<p>\u4eca\u56de\u306f\u3001React\u3092\u4f7f\u3063\u3066\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u308b\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u77e5\u8b58\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002React\u306b\u3064\u3044\u3066\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u3053\u3068\u306f\u3053\u308c\u4ee5\u5916\u306b\u3082\u305f\u304f\u3055\u3093\u3042\u308a\u307e\u3059\u3002\u8907\u6570\u306e\u30da\u30fc\u30b8\u3092\u6301\u3064\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3084\u3001Redux\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u305f\u5358\u4e00\u306e\u72b6\u614b\u7ba1\u7406\u306a\u3069\u3001React\u3067\u52b9\u7387\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u6a5f\u80fd\u306f\u4ed6\u306b\u3082\u307e\u3060\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>React\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u5b66\u7fd2\u3059\u308b\u306b\u306f\u3001<a href=\"https:\/\/reactjs.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">React\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002\u30d5\u30c3\u30af\u3092\u4f7f\u3063\u3066\u66f8\u304d\u76f4\u3057\u306e\u884c\u308f\u308c\u3066\u3044\u308b<a href=\"https:\/\/beta.reactjs.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30d9\u30fc\u30bf\u7248\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u3057\u3066\u306eReact\u306f\u3001\u958b\u767a\u8005\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306b\u304a\u3051\u308b\u4ed6\u306e<a href=\"https:\/\/kinqsta.com\/blog\/angular-vs-react\/\" rel=\"noopener\">\u30e9\u30a4\u30d6\u30e9\u30ea\uff0f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af<\/a>\u3068\u6bd4\u8f03\u3057\u3066\u5927\u304d\u306a\u6210\u9577\u3092\u7d9a\u3051\u3066\u304a\u308a\u3001\u305d\u306e\u52e2\u3044\u306f\u3068\u3069\u307e\u308b\u3068\u3053\u308d\u3092\u77e5\u308a\u307e\u305b\u3093\u3002\u73fe\u4ee3\u306e\u30a6\u30a7\u30d6\u958b\u767a\u8005\u306b\u6b20\u304b\u305b\u306a\u3044\u8981\u7d20\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u591a\u304f\u306e\u958b\u767a\u8005\u304c\u30a6\u30a7\u30d63\u6280\u8853\u3092\u63a1\u7528\u3059\u308b\u73fe\u5728\u3001React\u306f\u5206\u6563\u578b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff08DApps\uff09\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u5b9a\u756a\u30c4\u30fc\u30eb\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>React\u3092\u4f7f\u3048\u3070\u3001\u30b7\u30f3\u30d7\u30eb\u306aToDo\u30ea\u30b9\u30c8\u306e\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u304b\u3089\u30de\u30fc\u30b1\u30c3\u30c8\u30d7\u30ec\u30a4\u30b9\u3001\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>React\u306f\u3001Bootstrap\u3001<a href=\"https:\/\/kinqsta.com\/jp\/blog\/tailwind-css\/\">Tailwind CSS<\/a>\u3001Axios\u3001Redux\u3001Firebase\u306a\u3069\u3001\u591a\u304f\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3068\u4e00\u7dd2\u306b\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001React\u3092Node.js\u3084\u305d\u306e\u4ed6\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9<a href=\"https:\/\/kinqsta.com\/blog\/best-programming-language-to-learn\/\" rel=\"noopener\">\u8a00\u8a9e<\/a>\u3068\u4f75\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5149\u901f\u3067\u52d5\u4f5c\u3059\u308b<a href=\"https:\/\/kinqsta.com\/blog\/backend-vs-frontend\/\" rel=\"noopener\">\u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/a>\u3084\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd1\u5e74\u3001\u30a6\u30a7\u30d6\u958b\u767a\u696d\u754c\u306f\u7740\u5b9f\u306a\u6210\u9577\u3092\u9042\u3052\u3066\u3044\u307e\u3059\u3002\u3053\u306e &#8230;<\/p>\n","protected":false},"author":240,"featured_media":55664,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kinsta_gated_content":false,"_kinsta_gated_content_redirect":"","footnotes":""},"tags":[],"topic":[777,802],"class_list":["post-55663","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","topic-javascript-frameworks","topic-react"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.6 (Yoast SEO v24.6) - 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