tsconfig.json

// https://github.com/vitejs/vite/blob/main/packages/create-vite/template-react-ts/tsconfig.json
{
  "compilerOptions": {
    // vite
    "target": "ES2020",
    "useDefineForClassFields": true,
    "lib": ["ES2020", "DOM", "DOM.Iterable"],
    "module": "ESNext",
    "skipLibCheck": true,
    "moduleResolution": "bundler",
    "allowImportingTsExtensions": true,
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true,
    "jsx": "react-jsx",
    // strict
    "strict": true,
    "verbatimModuleSyntax": true,
    // strictest
    "allowUnusedLabels": false,
    "allowUnreachableCode": false,
    "exactOptionalPropertyTypes": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitOverride": true,
    "noImplicitReturns": true,
    "noUncheckedIndexedAccess": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    // checkJs
    "allowJs": true,
    "checkJs": true,
    // custom
    "paths": {
      "@/*": ["./src/*"]
    },
    "plugins": [
      {
        "name": "typescript-plugin-css-modules",
        "options": {
          "classnameTransform": "camelCase"
        }
      }
    ]
  },
  "include": ["src/"]
}