{"id":3308,"date":"2026-08-26T15:28:48","date_gmt":"2026-08-26T06:28:48","guid":{"rendered":"https:\/\/qol-kk.com\/wp2\/?p=3308"},"modified":"2026-08-26T15:28:48","modified_gmt":"2026-08-26T06:28:48","slug":"20260826-plan010","status":"publish","type":"post","link":"https:\/\/qol-kk.com\/wp2\/blog\/2026\/08\/26\/20260826-plan010\/","title":{"rendered":"Vite + React + TypeScript \u3067\u958b\u767a\u74b0\u5883\u3092\u69cb\u7bc9\u3059\u308b"},"content":{"rendered":"<h2>\u6982\u8981<\/h2>\n<p>React \u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u958b\u767a\u3092\u59cb\u3081\u308b\u3068\u304d\u3001\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u306b <strong>Vite<\/strong> \u3092\u9078\u3076\u306e\u306f\u4eca\u3084\u6a19\u6e96\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\u304b\u3064\u3066\u4e3b\u6d41\u3060\u3063\u305f Create React App\uff08CRA\uff09\u306f\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4f53\u5236\u304c\u7e2e\u5c0f\u3057\u3001\u516c\u5f0f\u3067\u3082\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u306f Vite \u306a\u3069\u306e\u30e2\u30c0\u30f3\u30c4\u30fc\u30eb\u3092\u63a8\u5968\u3059\u308b\u6d41\u308c\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001Vite + React + TypeScript \u306e\u958b\u767a\u74b0\u5883\u3092\u30bc\u30ed\u304b\u3089\u69cb\u7bc9\u3057\u3001\u5b9f\u52d9\u3067\u5fc5\u8981\u306b\u306a\u308b\u30d1\u30b9\u30a8\u30a4\u30ea\u30a2\u30b9\u30fb\u74b0\u5883\u5909\u6570\u30fbESLint \/ Prettier\u30fb\u672c\u756a\u30d3\u30eb\u30c9\u307e\u3067\u3092\u4e00\u901a\u308a\u6574\u3048\u308b\u624b\u9806\u3092\u3001\u30cf\u30f3\u30ba\u30aa\u30f3\u5f62\u5f0f\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u5bfe\u8c61\u8aad\u8005: React \u3092\u3053\u308c\u304b\u3089\u59cb\u3081\u308b\u4eba\u3001CRA \u304b\u3089 Vite \u3078\u79fb\u884c\u3057\u305f\u3044\u4eba<\/li>\n<li>\u30b4\u30fc\u30eb: \u578b\u5b89\u5168\u306b\u958b\u767a\u3067\u304d\u3001Lint \/ Format \u304c\u52b9\u304d\u3001\u672c\u756a\u30d3\u30eb\u30c9\u307e\u3067\u901a\u308b\u6700\u5c0f\u69cb\u6210<\/li>\n<\/ul>\n<h2>\u74b0\u5883<\/h2>\n<ul>\n<li>Node.js 20.x \u4ee5\u964d\uff08Vite 5 \u306f Node 18+ \u304c\u5fc5\u9808\uff09<\/li>\n<li>Vite 5.x \/ React 18.x \/ TypeScript 5.x<\/li>\n<li>\u30d1\u30c3\u30b1\u30fc\u30b8\u30de\u30cd\u30fc\u30b8\u30e3\u306f npm\uff08pnpm \/ yarn \u8aad\u307f\u66ff\u3048\u53ef\uff09<\/li>\n<\/ul>\n<h2>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210<\/h2>\n<p>Vite \u306e\u516c\u5f0f\u30b9\u30ad\u30e3\u30d5\u30a9\u30fc\u30eb\u30c7\u30a3\u30f3\u30b0\u3067\u3001TypeScript \u4ed8\u304d\u306e React \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">npm create vite@latest my-app -- --template react-ts\r\ncd my-app\r\nnpm install\r\nnpm run dev<\/pre>\n<p><code>npm run dev<\/code> \u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067 <code>http:\/\/localhost:5173<\/code> \u306b\u958b\u767a\u30b5\u30fc\u30d0\u304c\u7acb\u3061\u4e0a\u304c\u308a\u3001HMR\uff08Hot Module Replacement\uff09\u304c\u6709\u52b9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001<code>-- --template react-ts<\/code> \u306e\u6700\u521d\u306e <code>--<\/code> \u306f\u3001npm \u5074\u3068 Vite \u5074\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u533a\u5207\u308b\u8a18\u53f7\u3067\u3059\u3002\u7701\u304f\u3068 <code>--template<\/code> \u304c npm \u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066\u89e3\u91c8\u3055\u308c\u3001\u610f\u56f3\u901a\u308a\u306b\u52d5\u304d\u307e\u305b\u3093\u3002<\/p>\n<h2>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u69cb\u6210\u3092\u628a\u63e1\u3059\u308b<\/h2>\n<pre class=\"lang:default decode:true\">my-app\/\r\n\u251c\u2500 index.html          # Vite\u306e\u30a8\u30f3\u30c8\u30ea\u3002\u30eb\u30fc\u30c8\u76f4\u4e0b\u306b\u3042\u308b\r\n\u251c\u2500 tsconfig.json\r\n\u251c\u2500 tsconfig.node.json\r\n\u251c\u2500 vite.config.ts\r\n\u2514\u2500 src\/\r\n   \u251c\u2500 main.tsx\r\n   \u251c\u2500 App.tsx\r\n   \u2514\u2500 vite-env.d.ts<\/pre>\n<p>CRA \u3068\u306e\u6700\u5927\u306e\u9055\u3044\u306f\u3001<strong><code>index.html<\/code> \u304c\u30eb\u30fc\u30c8\u76f4\u4e0b\u306b\u3042\u308a\u3001\u305d\u3053\u304c\u8d77\u70b9\u306b\u306a\u308b<\/strong>\u70b9\u3067\u3059\u3002Vite \u306f <code>index.html<\/code> \u3092\u30bd\u30fc\u30b9\u306e\u4e00\u90e8\u3068\u3057\u3066\u6271\u3044\u3001<code>&lt;script type=\"module\" src=\"\/src\/main.tsx\"&gt;<\/code> \u3092\u89e3\u6c7a\u3057\u3066\u30d3\u30eb\u30c9\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30d1\u30b9\u30a8\u30a4\u30ea\u30a2\u30b9\u3092\u8a2d\u5b9a\u3059\u308b<\/h2>\n<p>\u898f\u6a21\u304c\u5927\u304d\u304f\u306a\u308b\u3068\u76f8\u5bfe\u30d1\u30b9\u304c\u8aad\u307f\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<code>@\/<\/code> \u3092 <code>src\/<\/code> \u306b\u5411\u3051\u308b\u30a8\u30a4\u30ea\u30a2\u30b9\u3092\u3001<strong>TypeScript \u3068 Vite \u306e\u4e21\u65b9<\/strong>\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p><code>tsconfig.json<\/code>\uff08\u65b0\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3067\u306f <code>tsconfig.app.json<\/code>\uff09:<\/p>\n<pre class=\"lang:default decode:true\">{\r\n  \"compilerOptions\": {\r\n    \"baseUrl\": \".\",\r\n    \"paths\": { \"@\/*\": [\"src\/*\"] }\r\n  }\r\n}<\/pre>\n<p>Vite \u5074\uff08<code>@types\/node<\/code> \u3092\u5148\u306b\u5165\u308c\u308b\uff09:<\/p>\n<pre class=\"lang:default decode:true\">npm install -D @types\/node<\/pre>\n<pre class=\"lang:default decode:true\">import { defineConfig } from 'vite'\r\nimport react from '@vitejs\/plugin-react'\r\nimport path from 'node:path'\r\n\r\nexport default defineConfig({\r\n  plugins: [react()],\r\n  resolve: {\r\n    alias: { '@': path.resolve(__dirname, '.\/src') },\r\n  },\r\n})<\/pre>\n<p>\u7247\u65b9\u3060\u3051\u306e\u8a2d\u5b9a\u3060\u3068\u300c\u30a8\u30c7\u30a3\u30bf\u3067\u306f\u901a\u308b\u304c\u30d3\u30eb\u30c9\u3067\u843d\u3061\u308b\u300d\u3042\u308b\u3044\u306f\u305d\u306e\u9006\u304c\u8d77\u304d\u308b\u305f\u3081\u3001\u5fc5\u305a\u4e21\u65b9\u306b\u66f8\u304d\u307e\u3059\u3002<\/p>\n<h2>\u74b0\u5883\u5909\u6570\u3092\u6271\u3046<\/h2>\n<p>Vite \u3067\u306f <strong><code>VITE_<\/code> \u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u4ed8\u304d\u306e\u5909\u6570\u3060\u3051<\/strong>\u304c <code>import.meta.env<\/code> \u7d4c\u7531\u3067\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u516c\u958b\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u79d8\u5bc6\u60c5\u5831\u3092\u8aa4\u3063\u3066\u30d0\u30f3\u30c9\u30eb\u306b\u542b\u3081\u306a\u3044\u305f\u3081\u306e\u5b89\u5168\u5f01\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\"># .env\r\nVITE_API_BASE_URL=https:\/\/api.example.com<\/pre>\n<pre class=\"lang:default decode:true\">const baseUrl = import.meta.env.VITE_API_BASE_URL<\/pre>\n<p>\u578b\u88dc\u5b8c\u3092\u52b9\u304b\u305b\u308b\u5834\u5408\u306f <code>src\/vite-env.d.ts<\/code> \u306b\u8ffd\u8a18\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">\/\/\/ &lt;reference types=\"vite\/client\" \/&gt;\r\n\r\ninterface ImportMetaEnv {\r\n  readonly VITE_API_BASE_URL: string\r\n}\r\ninterface ImportMeta {\r\n  readonly env: ImportMetaEnv\r\n}<\/pre>\n<p><code>.env<\/code> \u306f <code>.gitignore<\/code> \u306b\u5165\u308c\u3001<code>.env.example<\/code> \u3092\u914d\u5e03\u3059\u308b\u3068\u30c1\u30fc\u30e0\u3067\u5fc5\u8981\u306a\u5909\u6570\u3092\u5171\u6709\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>ESLint \u3068 Prettier \u3092\u6574\u3048\u308b<\/h2>\n<p>\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306f Prettier\u3001\u54c1\u8cea\u30c1\u30a7\u30c3\u30af\u306f ESLint\u3001\u3068\u5f79\u5272\u3092\u5206\u3051\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">npm install -D prettier eslint-config-prettier<\/pre>\n<p><code>eslint-config-prettier<\/code> \u3092 ESLint \u8a2d\u5b9a\u306e<strong>\u672b\u5c3e<\/strong>\u306b\u7f6e\u304d\u3001Prettier \u3068\u7af6\u5408\u3059\u308b\u30eb\u30fc\u30eb\u3092\u7121\u52b9\u5316\u3057\u307e\u3059\uff08Flat Config \u306e\u5834\u5408\uff09\u3002<\/p>\n<pre class=\"lang:default decode:true\">import prettier from 'eslint-config-prettier'\r\n\r\nexport default [\r\n  \/\/ ...\u65e2\u5b58\u8a2d\u5b9a...\r\n  prettier, \/\/ \u672b\u5c3e\u306b\u7f6e\u304f\u306e\u304c\u5fc5\u9808\r\n]<\/pre>\n<p><code>package.json<\/code> \u306e scripts:<\/p>\n<pre class=\"lang:default decode:true\">{\r\n  \"scripts\": {\r\n    \"dev\": \"vite\",\r\n    \"build\": \"tsc -b &amp;&amp; vite build\",\r\n    \"preview\": \"vite preview\",\r\n    \"lint\": \"eslint .\",\r\n    \"format\": \"prettier --write .\"\r\n  }\r\n}<\/pre>\n<h2>\u672c\u756a\u30d3\u30eb\u30c9\u3068\u78ba\u8a8d<\/h2>\n<pre class=\"lang:default decode:true\">npm run build     # tsc -b \u3067\u578b\u30c1\u30a7\u30c3\u30af \u2192 vite build \u3067\u30d0\u30f3\u30c9\u30eb\r\nnpm run preview   # dist\/ \u3092\u672c\u756a\u76f8\u5f53\u3067\u30ed\u30fc\u30ab\u30eb\u914d\u4fe1\uff08\u78ba\u8a8d\u7528\uff09<\/pre>\n<p><code>build<\/code> \u30b9\u30af\u30ea\u30d7\u30c8\u306f\u578b\u30c1\u30a7\u30c3\u30af\u8fbc\u307f\u306e\u305f\u3081\u3001\u578b\u30a8\u30e9\u30fc\u304c\u3042\u308c\u3070\u30d3\u30eb\u30c9\u304c\u6b62\u307e\u308a\u307e\u3059\u3002\u751f\u6210\u7269\u306f <code>dist\/<\/code> \u306b\u51fa\u529b\u3055\u308c\u307e\u3059\u3002<code>preview<\/code> \u306f\u672c\u756a\u76f8\u5f53\u306e\u9759\u7684\u30d5\u30a1\u30a4\u30eb\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u3082\u306e\u3067\u3001\u672c\u756a\u30b5\u30fc\u30d0\u306e\u4ee3\u308f\u308a\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2>\u52d5\u4f5c\u78ba\u8a8d<\/h2>\n<ol>\n<li><code>npm run dev<\/code> \u3067 HMR \u304c\u52b9\u304f<\/li>\n<li><code>@\/<\/code> \u306e import \u304c\u30a8\u30c7\u30a3\u30bf\u30fb\u30d3\u30eb\u30c9\u53cc\u65b9\u3067\u901a\u308b<\/li>\n<li><code>import.meta.env.VITE_*<\/code> \u304c\u671f\u5f85\u3057\u305f\u5024\u3092\u8fd4\u3059<\/li>\n<li><code>npm run lint<\/code> \u304c\u30d1\u30b9\u3059\u308b<\/li>\n<li><code>npm run build<\/code> \u304c\u578b\u30a8\u30e9\u30fc\u306a\u304f\u5b8c\u4e86\u3057 <code>dist\/<\/code> \u304c\u751f\u6210\u3055\u308c\u308b<\/li>\n<li><code>npm run preview<\/code> \u3067\u672c\u756a\u76f8\u5f53\u306e\u8868\u793a\u304c\u78ba\u8a8d\u3067\u304d\u308b<\/li>\n<\/ol>\n<h2>\u6ce8\u610f\u70b9<\/h2>\n<ul>\n<li><strong>\u30a8\u30a4\u30ea\u30a2\u30b9\u306f\u4e8c\u91cd\u7ba1\u7406<\/strong>\u306b\u306a\u308b\uff08tsconfig \u3068 vite.config \u306e\u4e21\u65b9\u306b\u66f8\u304f\uff09<\/li>\n<li><strong><code>VITE_<\/code> \u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306e\u7121\u3044\u5909\u6570\u306f\u30d5\u30ed\u30f3\u30c8\u306b\u6765\u306a\u3044<\/strong>\u3002\u9006\u306b\u3001\u79d8\u5bc6\u60c5\u5831\u306b <code>VITE_<\/code> \u3092\u4ed8\u3051\u3066\u306f\u3044\u3051\u306a\u3044\uff08\u516c\u958b\u3055\u308c\u308b\uff09<\/li>\n<li><strong><code>preview<\/code> \u306f\u672c\u756a\u30b5\u30fc\u30d0\u3067\u306f\u306a\u3044<\/strong>\u3002\u5b9f\u904b\u7528\u306f\u5404\u7a2e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3067 <code>dist\/<\/code> \u3092\u914d\u4fe1\u3059\u308b<\/li>\n<li><strong>CRA \u304b\u3089\u306e\u79fb\u884c\u6642<\/strong>\u306f <code>process.env.REACT_APP_*<\/code> \u2192 <code>import.meta.env.VITE_*<\/code>\u3001<code>index.html<\/code> \u306e\u4f4d\u7f6e\u306b\u6ce8\u610f\u3059\u308b<\/li>\n<\/ul>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>Vite + React + TypeScript \u306f\u3001<code>npm create vite<\/code> \u3067\u5373\u5ea7\u306b\u59cb\u3081\u3089\u308c\u308b\u4e00\u65b9\u3001\u5b9f\u52d9\u3067\u52b9\u3044\u3066\u304f\u308b\u306e\u306f\u300c\u30d1\u30b9\u30a8\u30a4\u30ea\u30a2\u30b9\u30fb\u74b0\u5883\u5909\u6570\u30fbLint \/ Format\u30fb\u578b\u30c1\u30a7\u30c3\u30af\u8fbc\u307f\u30d3\u30eb\u30c9\u300d\u306e\u521d\u671f\u6574\u5099\u3067\u3059\u3002\u7279\u306b\u300ctsconfig \u3068 Vite \u306e\u4e21\u65b9\u306b\u8a2d\u5b9a\u3092\u66f8\u304f\u300d\u300c<code>VITE_<\/code> \u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306e\u610f\u5473\u3092\u7406\u89e3\u3059\u308b\u300d\u306e2\u70b9\u3092\u6700\u521d\u306b\u62bc\u3055\u3048\u3066\u304a\u304f\u3068\u3001\u5f8c\u304b\u3089\u306e\u624b\u623b\u308a\u3092\u5927\u304d\u304f\u6e1b\u3089\u305b\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>React \u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u958b\u767a\u3092\u59cb\u3081\u308b\u3068\u304d\u3001\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u306b Vite \u3092\u9078\u3076\u306e\u306f\u4eca\u3084\u6a19\u6e96\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\u304b\u3064\u3066\u4e3b\u6d41\u3060\u3063\u305f Create React App\uff08CRA\uff09\u306f\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4f53\u5236\u304c\u7e2e\u5c0f\u3057\u3001\u516c\u5f0f\u3067\u3082\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u306f Vite 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