.eslintrc.json

{
  "env": {
    "browser": true,
    "jest": true,
    "node": true,
    "es6": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:react/recommended",
    "prettier",
    "prettier/react"
  ],
  "parser": "babel-eslint",
  "parserOptions": {
    "ecmaFeatures": {
      "experimentalObjectRestSpread": true,
      "jsx": true
    },
    "sourceType": "module"
  },
  "plugins": ["react"],
  "rules": {
    "func-style": [
      "error",
      "declaration",
      {
        "allowArrowFunctions": false
      }
    ],
    "linebreak-style": ["error", "unix"],
    "no-console": ["off"],
    "no-multiple-empty-lines": ["error", { "max": 1 }],
    "no-var": ["error"],
    "react/no-render-return-value": ["off"],
    "react/prop-types": ["off"],
    "sort-keys": ["error", "asc"]
  }
}