.eslintrc.json

{
    "env": {
        "browser": true,
        "es6": true
    },
    "extends": ["xo/esnext"],
    "globals": {
        "Atomics": "readonly",
        "SharedArrayBuffer": "readonly"
    },
    "parser": "babel-eslint",
    "parserOptions": {
        "allowImportExportEverywhere": true,
        "ecmaFeatures": {
            "experimentalObjectRestSpread": true,
            "arrowFunctions": true
        },
        "ecmaVersion": 2020,
        "sourceType": "module"
    },
    "plugins": ["prettier"],
    "rules": {
        "no-warning-comments": "off",
        "prettier/prettier": "error",
        "object-curly-spacing": ["warn", "always"],
        "indent": ["error", 4, { "SwitchCase": 1 }],
        "max-len": [
            "warn",
            {
                "code": 120,
                "comments": 120,
                "ignoreComments": false,
                "ignoreTrailingComments": true,
                "ignoreUrls": true,
                "ignoreStrings": true,
                "ignoreTemplateLiterals": true,
                "ignoreRegExpLiterals": true
            }
        ]
    }
}