.eslintrc.json

{
  "parser": "babel-eslint",
  "parserOptions": {
    "ecmaVersion": 2017,
    "sourceType": "module"
  },
  "env": {
    "es6": true,
    "browser": true,
    "commonjs": true,
    "node": true
  },
  "extends": [
    "prettier",
    "plugin:react/recommended"
  ],
  "plugins": ["prettier"],
  "rules": {
    "array-callback-return": "error",
    "camelcase": "error",
    "curly": "error",
    "dot-notation": "error",
    "eqeqeq": "error",
    "implicit-arrow-linebreak": "off",
    "indent": ["error", 4, {"SwitchCase": 1}],
    "no-duplicate-case": "error",
    "no-else-return": "error",
    "no-empty": "error",
    "no-empty-function": "error",
    "no-extra-semi": "error",
    "no-func-assign": "error",
    "no-irregular-whitespace": "error",
    "no-multi-spaces": "error",
    "no-unreachable": "error",
    "no-unused-vars": "error",
    "no-var": "error",
    "prefer-arrow-callback": "error",
    "prefer-const": "error",
    "prettier/prettier": "error",
    "quotes": ["error", "single"],
    "semi": ["error", "always"],
    "vars-on-top": "error",
    "yoda": "error"
  },
  "settings": {
    "react": {
      "version": "17.0.1"
    }
  }
}