.eslintrc.json

{
    "env": {
        "browser": true,
        "commonjs": true,
        "es2021": true
    },
    "extends": ["airbnb-base"],
    "parserOptions": {
        "ecmaVersion": 12
    },
    "plugins": ["prettier"],
    "rules": {
        "keyword-spacing": [
            "error",
            {
                "before": true,
                "after": true
            }
        ],
        "indent": ["error", 4],
        "quotes": ["error", "double"],
        "comma-dangle": ["error", "never"],
        "semi": ["error", "never"],
        "no-underscore-dangle": ["error", { "allow": [] }],
        "no-param-reassign": ["error", { "props": false }],
        "no-console": ["error", { "allow": ["warn", "log", "error", "debug"] }],
        "operator-linebreak": ["error", "after"],
        "new-cap": ["warn", { "newIsCap": false }],
        "max-len": ["error", { "code": 230 }],
        "function-paren-newline": ["warn", { "minItems": 4 }],
        "no-restricted-syntax": ["error", "LabeledStatement", "WithStatement"],
        "class-methods-use-this": "off",
        "consistent-return": "warn",
        "func-names": ["error", "never"],
        "import/extensions": ["error", "ignorePackages", { "js": "always", "json": "always" }]
    }
}