Prettier/eslint configuration in create-react-app

.eslintrc

{
  "extends": ["react-app", "plugin:prettier/recommended"]
}

package.json

{
  "name": "playground",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "react": "^16.2.0",
    "react-dom": "^16.2.0",
    "react-scripts": "1.1.1"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject",
    "precommit": "pretty-quick --stage"
  },
  "devDependencies": {
    "eslint-config-prettier": "^2.9.0",
    "eslint-plugin-prettier": "^2.6.0",
    "husky": "^0.14.3",
    "lint-staged": "^7.0.0",
    "prettier": "^1.11.1",
    "pretty-quick": "^1.4.1"
  }
}