message: npm i -D
diff: "@babel/preset-env": "^7.10.3",
  "@babel/preset-react": "^7.10.1",
  "@babel/preset-typescript": "^7.10.4",
  + "@types/d3": "^5.7.2",
  "@types/react": "^16.9.41",
  "@types/react-dom": "^16.9.8",
  "babel-eslint": "^10.1.0",
  