.eslintrc.json

{
  "env": {
    "node": true,
    "es6": true,
    "mocha": true
  },
  "extends": ["airbnb-base", "plugin:prettier/recommended"],
  "plugins": ["mocha", "prettier", "chai-friendly"],
  "rules": {
    "prettier/prettier": "error",
    "linebreak-style": 0,
    "eol-last": 2,
    "quotes": [2, "single", { "avoidEscape": true }],
    "semi": [2, "always"],
    "eqeqeq": [2, "smart"],
    "no-restricted-globals": ["off"],
    "no-use-before-define": [2, "nofunc"],
    "no-confusing-arrow": "off",
    "no-unused-vars": [2, { "vars": "local", "args": "none" }],
    "no-multi-str": 2,
    "no-irregular-whitespace": 2,
    "comma-dangle": "off",
    "max-len": "off",
    "func-names": "off",
    "class-methods-use-this": "off",
    "no-underscore-dangle": "off",
    "no-plusplus": "off",
    "no-unused-expressions": 0,
    "chai-friendly/no-unused-expressions": [2, { "allowShortCircuit": true, "allowTernary": true }],
    "prefer-destructuring": "off",
    "no-multi-assign": "off",
    "no-param-reassign": "off",
    "no-shadow": "off"
  }
}