.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"
    }
}