.eslintrc.json

{
  "root": true,
  "extends": "airbnb-base",
  "env": {
    "node": true,
    "mocha": true
  },
  "globals": {
    "expect": true
  },
  "rules": {
    "arrow-body-style": "off",
    "arrow-parens": ["error", "always"],
    "class-methods-use-this": "off",
    "comma-dangle": ["error", "never"],
    "consistent-return": "off",
    "eqeqeq": "off",
    "func-names": ["error", "as-needed"],
    "global-require": "off",
    "implicit-arrow-linebreak": "off",
    "new-cap": "off",
    "no-console": "off",
    "no-shadow": "off",
    "no-restricted-syntax": "off",
    "no-multiple-empty-lines": ["error", {
      "max": 1,
      "maxBOF": 0,
      "maxEOF": 1
    }],
    "no-param-reassign": ["error", {
      "props": false
    }],
    "no-prototype-builtins": "off",
    "no-underscore-dangle": "off",
    "no-unused-expressions": ["error", {
      "allowShortCircuit": true,
      "allowTernary": true
    }],
    "no-unused-vars": ["error", {
      "vars": "all",
      "args": "after-used",
      "ignoreRestSiblings": true
    }],
    "operator-linebreak": ["error", "before", {
      "overrides": {
        "=": "after"
      }
    }],
    "padded-blocks": ["error", "never"],
    "semi": ["error", "never"],
    "import/order": ["error", {
      "groups": ["builtin", "external", "parent", "sibling", "index"],
      "newlines-between": "always"
    }],
    "import/prefer-default-export": "off"
  }
}