✏️

npx create-react-app "폴더명" --template typescript

🚩이전 → 수정 또는 추가

{
  "compilerOptions": {
    "target": "es5" -> **"es6"**,
    "lib": [
      "dom",
      "dom.iterable",
      "esnext"
		 ***"es6"** 
    ],
    "allowJs": true,
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "module": "esnext" -> react.js // "commonjs"->node.js,
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true,
    "jsx": "react-jsx"
  },
  "include": [
    "src"
  ]
}