my-app/package.json

{
  "name": "1-my-app",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "dev": "webpack-dev-server",
    "build": "webpack"
  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/Johnhong9527/react-ts.git"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "bugs": {
    "url": "https://github.com/Johnhong9527/react-ts/issues"
  },
  "homepage": "https://github.com/Johnhong9527/react-ts#readme",
  "devDependencies": {
    "autoprefixer": "^9.5.1",
    "css-loader": "^2.1.1",
    "html-webpack-plugin": "^3.2.0",
    "mini-css-extract-plugin": "^0.6.0",
    "node-sass": "^4.12.0",
    "optimize-css-assets-webpack-plugin": "^5.0.1",
    "postcss": "^7.0.16",
    "postcss-loader": "^3.0.0",
    "sass": "^1.20.1",
    "sass-loader": "^7.1.0",
    "sass-resources-loader": "^2.0.0",
    "style-loader": "^0.23.1",
    "sugarss": "^2.0.0",
    "ts-loader": "^6.0.0",
    "typescript": "^3.4.5",
    "webpack": "^4.31.0",
    "webpack-cli": "^3.3.2",
    "webpack-dev-server": "^3.3.1"
  },
  "dependencies": {
    "@material-ui/core": "^3.9.3",
    "@material-ui/icons": "^3.0.2",
    "@types/react": "^16.8.17",
    "@types/react-dom": "^16.8.4",
    "react": "^16.8.6",
    "react-dom": "^16.8.6"
  }
}