{"id":8825,"date":"2026-04-03T18:39:30","date_gmt":"2026-04-03T09:39:30","guid":{"rendered":"https:\/\/ciel-p.co.jp\/kagurazaka\/?p=8825"},"modified":"2026-04-03T18:39:33","modified_gmt":"2026-04-03T09:39:33","slug":"%ef%bc%91%e8%aa%b2%e3%81%ae%e6%8a%80%e8%a1%93%e6%9b%b8%e3%80%80react%e5%9f%ba%e7%a4%8e%e7%94%a8%e8%aa%9e%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"https:\/\/ciel-p.co.jp\/kagurazaka\/2026\/04\/03\/%ef%bc%91%e8%aa%b2%e3%81%ae%e6%8a%80%e8%a1%93%e6%9b%b8%e3%80%80react%e5%9f%ba%e7%a4%8e%e7%94%a8%e8%aa%9e%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6\/","title":{"rendered":"\uff11\u8ab2\u306e\u6280\u8853\u66f8\u3000React\u57fa\u790e\u7528\u8a9e\u306b\u3064\u3044\u3066"},"content":{"rendered":"\n<p class=\"has-medium-font-size\">\u3053\u3093\u306b\u3061\u306f\u3002mitu\u3067\u3059\u3002<br><br>4\u6708\u306b\u306a\u308a\u66a6\u4e0a\u3067\u306f\u6625\u306b\u306a\u308a\u307e\u3057\u305f\u304c\u3001\u671d\u306f\u307e\u3060\u808c\u5bd2\u3044\u65e5\u3082\u3042\u308a\u307e\u3059\u306d\u3002<br>\u304a\u663c\u7b49\u306e\u6696\u304b\u3044\u65e5\u306f\u65e5\u5411\u307c\u3063\u3053\u3084\u30d4\u30af\u30cb\u30c3\u30af\u306a\u3069\u3057\u3066\u307f\u3066\u3082\u6c17\u6301\u3061\u3088\u3055\u305d\u3046\u3067\u3059\u306d\u3002<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-medium-font-size\">\u3055\u3066\u3001<a href=\"https:\/\/ciel-p.co.jp\/kagurazaka\/2025\/10\/08\/%ef%bc%91%e8%aa%b2%e3%81%ae%e6%8a%80%e8%a1%93%e6%9b%b8%e3%80%80react%e3%81%a7%e3%81%ae%e3%83%8d%e3%82%b9%e3%83%88%e3%83%9a%e3%83%bc%e3%82%b8%e7%b7%a8\/\" data-type=\"URL\" data-id=\"https:\/\/ciel-p.co.jp\/kagurazaka\/2024\/11\/17\/%ef%bc%91%e8%aa%b2%e3%81%ae%e6%8a%80%e8%a1%93%e6%9b%b8%e3%80%80reactxvite%e7%92%b0%e5%a2%83%e6%a7%8b%e7%af%89%e7%b7%a8\/\">\u524d\u56de<\/a>\u306e\u30d6\u30ed\u30b0\u3067\u306freact\u3092\u4f7f\u7528\u3057\u3066\u5165\u308c\u5b50\u69cb\u9020\u306e\u30da\u30fc\u30b8\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<br><strong>\u4eca\u56de\u306f\u3001\u5b9f\u88c5\u90e8\u5206\u304b\u3089\u5c11\u3057\u96e2\u308c\u3066react\u3067\u983b\u51fa\u3059\u308b\u57fa\u672c\u7684\u306a\u7528\u8a9e\u3067\u3042\u308b\u4ee5\u4e0b3\u3064\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059!<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size\">\u30fb\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<br>\u30fbprops<br>\u30fbuseState<\/p>\n\n\n\n<div style=\"height:44px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">\u7528\u8a9e\u306e\u8aac\u660e\u3057\u3066\u3044\u304f\u524d\u306b\u3001\u8aac\u660e\u3067\u4f7f\u7528\u3059\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u4ee5\u4e0b\u306b\u8a18\u8f09\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-medium-font-size\">\u30fbApp<br>\u30fbGreeting<\/p>\n\n\n\n<p class=\"has-medium-font-size\">\u305d\u308c\u305e\u308c\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u3064\u3044\u3066\u7c21\u5358\u306b\u8aac\u660e\u3059\u308b\u3068\u3001App\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u753b\u9762\u306b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306e\u5f79\u5272\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9Greeting\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u300c\u3053\u3093\u306b\u3061\u306f\u300d\uff0b\u5909\u6570\u3067\u5b9a\u7fa9\u3057\u305f\u540d\u524d\uff0b\u300c\u3055\u3093\u300d\u3068\u3044\u3046\u8868\u793a\u5185\u5bb9\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">\u3067\u306f\u3001\u3055\u3063\u305d\u304f\u7528\u8a9e\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u3066\u3044\u304d\u307e\u3059!<\/p>\n\n\n\n<div style=\"height:34px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color has-link-color has-medium-font-size wp-elements-3c6682f21c1e3543003ed653a07fa078\"><strong>\u25bc \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u306f\uff1f<\/strong><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-2427617f7992ab587e640511a8f2591d\">\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u3064\u3044\u3066\u8a71\u3059\u524d\u306bWeb\u30b5\u30a4\u30c8\u306e\u4f5c\u308a\u65b9\u306e\u6b74\u53f2\u306b\u3064\u3044\u3066\u5c11\u3057\u89e6\u308c\u3066\u304a\u304d\u307e\u3059\u3002<br>\u6614\u306f\u30dc\u30bf\u30f3\u3084\u6587\u7ae0\u306a\u3069\u753b\u9762\u306e\u898b\u305f\u76ee\u90e8\u5206\u3092\u5148\u306b\u4f5c\u308a\u3001\u305d\u306e\u5f8c\u3067\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u305f\u3089\u753b\u9762\u9077\u79fb\u3084\u30c7\u30fc\u30bf\u304c\u9001\u4fe1\u3055\u308c\u308b\u306a\u3069\u306e\u52d5\u304d\u304c\u3042\u308b\u51e6\u7406\u3092JavaScript\u3067\u8ffd\u52a0\u3059\u308b\u3068\u3044\u3046\u6d41\u308c\u3067Web\u30b5\u30a4\u30c8\u304c\u4f5c\u3089\u308c\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3057\u305f\u3002<br>\u6700\u8fd1\u306eWeb\u30b5\u30a4\u30c8\u306f\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u305f\u3068\u304d\u306e\u52d5\u304d\u306a\u3069\u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c\u306b\u53cd\u5fdc\u3059\u308b\u4ed5\u7d44\u307f\u304c\u3068\u3066\u3082\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-bd0865836e09cb6d7167af3e256200b2\">React\u3067\u306f\u3001\u753b\u9762\u306e\u898b\u305f\u76ee\u3068\u52d5\u304d\u3092\u307e\u3068\u3081\u305f\u518d\u5229\u7528\u53ef\u80fd\u306a\u90e8\u54c1\u3092\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u547c\u3073\u307e\u3059\u3002<br>\u4f8b\u3048\u3070\u3001\u30dc\u30bf\u30f3\u3084\u5165\u529b\u30d5\u30a9\u30fc\u30e0\u306a\u3069\u3001\u753b\u9762\u306e\u4e00\u90e8\u5206\u3092\u90e8\u54c1\u3068\u3057\u3066\u4f5c\u308a\u3001\u305d\u308c\u3089\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u753b\u9762\u3092\u4f5c\u308a\u307e\u3059\u3002<br>\u90e8\u54c1\u3068\u3057\u3066\u4f5c\u3063\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u540c\u3058UI\u3092\u4f55\u5ea6\u3082\u4f5c\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u3001\u30b3\u30fc\u30c9\u306e\u8a18\u8ff0\u91cf\u304c\u6e1b\u308a\u3001\u4ed6\u306e\u753b\u9762\u3067\u3082\u518d\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-ff3a1e7a0579fa3c3c615432016d9c60\">React\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u306f\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u3064\u3044\u3066\u6b21\u306e\u3088\u3046\u306b\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>React \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u306f\u3001\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u3092\u6dfb\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308bJavaScript\u95a2\u6570\u3067\u3059\u3002<br><a href=\"https:\/\/ja.react.dev\/learn\/your-first-component\">\u5f15\u7528:\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u5b9a\u7fa9\u306b\u3064\u3044\u3066<\/a><\/p>\n<\/blockquote>\n\n\n\n<p class=\"has-medium-font-size\">\u3053\u3053\u3067\u8a00\u3046\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u3068\u306f\u3001\u753b\u9762\u306b\u3069\u3093\u306a\u8981\u7d20\u3092\u8868\u793a\u3059\u308b\u304b\u3092\u30bf\u30b0\u5f62\u5f0f\u3067\u66f8\u304f\u30b3\u30fc\u30c9\u3092\u3055\u3057\u3066\u3044\u307e\u3059\u3002<br>\u4f8b\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a&lt;h1&gt;\u3084&lt;button&gt;\u306a\u3069\u304c\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u3067\u3059\u3002<br>\u5c1a\u3001&lt;h1&gt;\u306f\u898b\u51fa\u3057\u3067&lt;button&gt;\u306f\u30dc\u30bf\u30f3\u8981\u7d20\u3092\u3055\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;h1&gt;\u30bf\u30a4\u30c8\u30eb&lt;\/h1&gt;\n&lt;button&gt;\u6b21\u3078&lt;\/button&gt;<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">\u3053\u306e\u3088\u3046\u306b\u30bf\u30b0\u3092\u4f7f\u3063\u3066\u3001\u753b\u9762\u306e\u5185\u5bb9\u3092\u66f8\u304fHTML\u3068\u3044\u3046\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u8a00\u8a9e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:33px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-a9a249575c57d934c83610ed0d6d83bb\">React\u3067\u306f\u3001\u3053\u306e\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u3092jsx\u3068\u3044\u3046\u8a18\u6cd5\u3092\u7528\u3044\u3066\u8a18\u8ff0\u3057\u307e\u3059\u3002<br>jsx\u306fHTML\u306b\u4f3c\u305f\u898b\u305f\u76ee\u3067\u3059\u304c\u3001JavaScript\u306e\u4e2d\u3067UI\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001JavaScript\u306e\u5024\u3084\u51e6\u7406\u3092\u57cb\u3081\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-06bca8c3c4ae170f3cd78f2cca4236d9\">\u4f8b\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>export default function Greeting() {\n  const name = \"\u4f50\u85e4\";\n  return &lt;h1&gt;\u3053\u3093\u306b\u3061\u306f{name}\u3055\u3093&lt;\/h1&gt;;\n}<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">Greeting\u306f\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u540d\u524d\u3067\u3001React\u3067\u306f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u540d\u306f\u5927\u6587\u5b57\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-medium-font-size\">\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001Greeting\u3068\u3044\u3046\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u3001\u300c\u3053\u3093\u306b\u3061\u306f{name}\u3055\u3093\u300d\u3068\u3044\u3046\u898b\u51fa\u3057\u3092\u8868\u793a\u3059\u308bUI\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-medium-font-size\">\u3053\u3093\u306b\u3061\u306f{name}\u3055\u3093\u306e\u90e8\u5206\u304cjsx\u3067\u3001{name}\u306e\u3088\u3046\u306bJavaScript\u306e\u5024\u3092\u57cb\u3081\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"has-medium-font-size\">\u3053\u306e\u4f8b\u3067\u306f\u3001\u540d\u524d\u3092\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u5185\u3067\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u5916\u304b\u3089\u5024\u3092\u6e21\u3059\u4ed5\u7d44\u307f\u304cprops\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:47px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color has-link-color has-medium-font-size wp-elements-b9b84c82ae936de3e635a581e7ef05f7\"><strong>\u25bc props\u3068\u306f\uff1f<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size\">props\u3068\u306f\u4e00\u8a00\u3067\u8a00\u3046\u3068\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u30c7\u30fc\u30bf\u3092\u6e21\u3059\u305f\u3081\u306e\u4ed5\u7d44\u307f\u306e\u3053\u3068\u3067\u3059\u3002<br>\u57fa\u672c\u7684\u306b\u3001\u89aa\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304b\u3089\u5b50\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u30c7\u30fc\u30bf\u304c\u6e21\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>props \u306f HTML \u306e\u5c5e\u6027\u3068\u4f3c\u3066\u3044\u308b\u3068\u601d\u308f\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001<br>props \u3067\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3084\u914d\u5217\u3001\u95a2\u6570\u306a\u3069\u306e\u3042\u3089\u3086\u308b JavaScript \u306e\u5024\u3092\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br><a href=\"https:\/\/ja.react.dev\/learn\/passing-props-to-a-component\">\u5f15\u7528:\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b props \u3092\u6e21\u3059<\/a><\/p>\n<\/blockquote>\n\n\n\n<pre class=\"wp-block-code\"><code>\u5b50\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\nfunction Greeting(props) {\nreturn &lt;h1&gt;\u3053\u3093\u306b\u3061\u306f\u3001{props.name}\u3055\u3093&lt;\/h1&gt;\n}\n\n\u89aa\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\nexport default function App() {\nreturn &lt;Greeting name=\"\u4f50\u85e4\" \/&gt;\n}<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001App\u3068\u3044\u3046\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304cGreeting\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u547c\u3073\u51fa\u3059\u3068\u304d\u306bname=&#8221;\u4f50\u85e4&#8221;\u3068\u3044\u3046\u5024\u3092\u6e21\u3057\u3066\u3044\u307e\u3059\u3002<br> Greeting\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u306f\u3001\u6e21\u3055\u308c\u305f\u5024\u3092props.name\u3068\u3057\u3066\u53d7\u3051\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br> \u305d\u306e\u305f\u3081\u3001\u753b\u9762\u306b\u306f\u300c\u3053\u3093\u306b\u3061\u306f\u3001\u4f50\u85e4\u3055\u3093\u300d\u306e\u3088\u3046\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<br> <br> \u3053\u306e\u3088\u3046\u306b\u89aa\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304b\u3089\u5b50\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3078\u30c7\u30fc\u30bf\u3092\u6e21\u3059\u4ed5\u7d44\u307f\u304cprops\u3067\u3059\u3002<br> props\u306f\u89aa\u304b\u3089\u5b50\u306e\u4e00\u65b9\u5411\u306b\u30c7\u30fc\u30bf\u304c\u6d41\u308c\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<br> <br> props\u306f\u3001\u53d7\u3051\u53d6\u3063\u305f\u5074\u3067\u5024\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u306f\u51fa\u6765\u307e\u305b\u3093\u3002<br> \u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c\u306a\u3069\u3067\u5024\u304c\u5909\u308f\u308b\u30c7\u30fc\u30bf\u306f\u3069\u306e\u3088\u3046\u306b\u7ba1\u7406\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<br> \u305d\u3053\u3067\u3001\u4f7f\u308f\u308c\u308b\u306e\u304cuseState\u3068\u3044\u3046React\u306e\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:51px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color has-link-color has-medium-font-size wp-elements-41693025f7bcedc3aeab16f75b2d7921\"><strong>\u25bc useState\u3068\u306f\uff1f<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size\">useState\u3068\u306f\u4e00\u8a00\u3067\u8a00\u3046\u3068\u72b6\u614b\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306eReact\u306e\u6a5f\u80fd\u3067\u3059\u3002<br>props\u3067\u306f\u3001\u30c7\u30fc\u30bf\u306e\u53d7\u3051\u6e21\u3057\u304c\u53ef\u80fd\u3067\u3059\u304c\u3001\u5b50\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u5024\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"has-medium-font-size\">\u305d\u306e\u3088\u3046\u306a\u3068\u304d\u306b\u4f7f\u308f\u308c\u308b\u306e\u304cuseState\u3068\u3044\u3046React\u306e\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><code>useState<\/code> \u306f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b state\uff08\u72b6\u614b\uff09\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u306e React \u30d5\u30c3\u30af\u3067\u3059\u3002<br>\uff08React\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3088\u308a\u65e5\u672c\u8a9e\u8a33)<br><a href=\"https:\/\/react.dev\/reference\/react\/useState\">useState<\/a><\/p>\n<\/blockquote>\n\n\n\n<pre class=\"wp-block-code\"><code>\u5b50\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\nfunction Greeting(props) {\n  return &lt;h1&gt;\u3053\u3093\u306b\u3061\u306f\u3001{props.name}\u3055\u3093&lt;\/h1&gt;\n}\n\n\u89aa\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\nexport default function App() {\n \/\/ \"\u4f50\u85e4\"\u306fname\u306e\u521d\u671f\u5024\n  const &#091;name, setName] = useState(\"\u4f50\u85e4\");\n\n  return (\n    &lt;div&gt;\n      &lt;Greeting name={name} \/&gt;\n    &lt;\/div&gt;\n  );\n}\n<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001useState \u3092\u4f7f\u3063\u3066 name \u3068\u3044\u3046\u5024\uff08\u753b\u9762\u306e\u8868\u793a\u306b\u5f71\u97ff\u3059\u308b\u30c7\u30fc\u30bf\uff09\u3092\u7ba1\u7406\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:37px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">React\u3067\u983b\u51fa\u3059\u308b\u57fa\u790e\u7684\u306a\u7528\u8a9e\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3057\u305f\u304c\u3001\u3044\u304b\u304c\u3067\u3057\u305f\u3067\u3057\u3087\u3046\u304b\u3002<br>\u4eca\u56de\u306e\u8a18\u4e8b\u3067React\u3092\u89e6\u3063\u3066\u307f\u305f\u3044\u3001\u9762\u767d\u305d\u3046\u3068\u601d\u3063\u3066\u3044\u305f\u3060\u3051\u305f\u3089\u5b09\u3057\u3044\u3067\u3059\u3002<br>\u6700\u5f8c\u307e\u3067\u8aad\u3093\u3067\u3044\u305f\u3060\u304d\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f!<\/p>\n\n\n\n<p class=\"has-medium-font-size\">\u307e\u305f\u6b21\u56de\u306e\u6280\u8853\u66f8\u3067\u304a\u4f1a\u3044\u3057\u307e\u3057\u3087\u3046!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3002mitu\u3067\u3059\u3002 4\u6708\u306b\u306a\u308a\u66a6\u4e0a\u3067\u306f\u6625\u306b\u306a\u308a\u307e\u3057\u305f\u304c\u3001\u671d\u306f\u307e\u3060\u808c\u5bd2\u3044\u65e5\u3082\u3042\u308a\u307e\u3059\u306d\u3002\u304a\u663c\u7b49\u306e\u6696\u304b\u3044\u65e5\u306f\u65e5\u5411\u307c\u3063\u3053\u3084\u30d4\u30af\u30cb\u30c3\u30af\u306a\u3069\u3057\u3066\u307f\u3066\u3082\u6c17\u6301\u3061\u3088\u3055\u305d\u3046\u3067\u3059\u306d\u3002 \u3055\u3066\u3001\u524d\u56de\u306e\u30d6\u30ed\u30b0\u3067\u306freact\u3092\u4f7f\u7528\u3057\u3066\u5165\u308c\u5b50&hellip; <\/p>\n","protected":false},"author":22,"featured_media":6484,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[202],"tags":[228],"coauthors":[267],"class_list":["post-8825","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-202","tag-react"],"jetpack_featured_media_url":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-content\/uploads\/2024\/11\/1\u8ab2\u306e\u6280\u8853\u66f8_mitu.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/posts\/8825","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/comments?post=8825"}],"version-history":[{"count":95,"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/posts\/8825\/revisions"}],"predecessor-version":[{"id":8999,"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/posts\/8825\/revisions\/8999"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/media\/6484"}],"wp:attachment":[{"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/media?parent=8825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/categories?post=8825"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/tags?post=8825"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/ciel-p.co.jp\/kagurazaka\/wp-json\/wp\/v2\/coauthors?post=8825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}