.eslintrc

{
  "parserOptions": {
    "ecmaVersion": 7,
    "sourceType": "script"
  },
  "extends": [
    "airbnb",
    "prettier"
  ],
  "parser": "babel-eslint",
  "env": {
    "es6": true,
    "mocha": true,
    "node": true
  },
  "rules": {
    "comma-dangle": ["error", {"arrays": "always-multiline", "objects": "always-multiline", "imports": "always-multiline", "exports": "always-multiline", "functions": "never"}],
    "func-names": ["off", "never"],
    "global-require": ["off"],
    "max-len": ["error", {"code": 160, "ignoreComments": true}],
    "no-mixed-operators": ["error", {"allowSamePrecedence": true}],
    "no-multi-assign": ["off"],
    "no-param-reassign": ["off"],
    "no-path-concat": ["off"],
    "no-plusplus": ["off"],
    "no-prototype-builtins": ["off"],
    "no-trailing-spaces": ["error", { "skipBlankLines": true }],
    "no-underscore-dangle": ["error", { "allowAfterThis": true, "allowAfterSuper": true }],
    "no-use-before-define": ["error", { "variables": false, "classes": false, "functions": false }],
    "object-property-newline": ["off", { "allowMultiplePropertiesPerLine": true }],
    "prefer-destructuring": ["warn", {"array": false, "object": true}],
    "prefer-rest-params": ["off"],
    "quotes": ["error", "single"],
    "semi": ["error", "always"],
    "space-before-function-paren": ["error", "never"],
    "strict": ["off"],
    "class-methods-use-this": ["off"],
    "no-return-assign": ["off"],
    "default-case": ["off"],
    "object-curly-spacing": ["error", "never"]
  }
}