.eslintrc.json

{
    "env": {
        "browser": true,
        "es6": true
    },
    "extends": "airbnb-base",
    "parser": "@babel/eslint-parser",
    "parserOptions": {
        "sourceType": "module",
        "requireConfigFile": false,
        "babelOptions": {
          "plugins": ["@babel/plugin-syntax-class-properties"]
        }
    },
    "overrides": [
        {
            "files": [
                "website/static/es6/**/*.js"
            ]
        }
    ],
    "rules": {
        "max-len": ["error", { "code": 100, "comments": 140 }],
        "comma-dangle": "off",
        "no-param-reassign": 0,
        "import/extensions": 0,
        "no-underscore-dangle": 0,
        "consistent-return": 0,
        "no-trailing-spaces": "warn",
        "spaced-comment": 0,
        "no-plusplus": 0,
        "prefer-template": 0,
        "object-curly-newline": 0,
        "arrow-body-style": 0,
        "import/prefer-default-export": 0,
        "no-else-return": 0,
        "no-lonely-if": 0,
        "default-case": 0,
        "linebreak-style": 0,
        "class-methods-use-this": 0,
        "max-classes-per-file": 0,
        "arrow-parens": 0,
        "no-multiple-empty-lines": 0,
        "no-mixed-operators": 0,
        "function-paren-newline": 0
    }
}