.eslintrc

{
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module",
    "ecmaFeatures": {
      "experimentalObjectRestSpread": true,
      "jsx": true
    }
  },
  "rules": {
    "semi": "error",
    "comma-dangle": "off",
    "no-console": "off",
    "keyword-spacing": "warn",
    "key-spacing": "error",
    "prefer-const": "error",
    "space-before-function-paren": ["error", "never"],
    "space-before-blocks": ["warn", "always"],
    "arrow-spacing": "warn",
    "eqeqeq": ["error", "smart"],
    "no-constant-condition": "off",
    "no-useless-escape": "off",
    "no-var": "warn",
    "object-shorthand": "warn",
    "no-restricted-globals": [
      "error",
      "event",
      "Promise",
      "fetch",
      "history",
      "location",
      "print"
    ],
    "react/display-name": "off",
    "quotes": ["error", "single"]
  },
  "extends": ["react-app"],
  "env": {
    "browser": true,
    "es6": true,
    "node": true
  },
  "plugins": ["react"]
}