.eslintrc.json

{
    "env": {
        "browser": true,
        "es6": true,
        "jest": true,
        "node": true
    },
    "extends": [
        "prettier"
    ],
    "globals": {
        "Promise": true,
        "API_URLS": false
    },
    "parser": "babel-eslint",
    "plugins": [
        "prettier"
    ],
    "rules": {
        "brace-style": [
            "error",
            "1tbs"
        ],
        "camelcase": "warn",
        "import/no-named-as-default": [
            "off"
        ],
        "import/prefer-default-export": [
            "off"
        ],
        "indent": [
            "error",
            4,
            {
                "SwitchCase": 1
            }
        ],
        "linebreak-style": [
            "warn",
            "windows"
        ],
        "max-depth": [
            "error",
            3
        ],
        "max-params": [
            "warn",
            3
        ],
        "newline-after-var": [
            "error",
            "always"
        ],
        "newline-before-return": "error",
        "newline-per-chained-call": [
            "error",
            {
                "ignoreChainWithDepth": 2
            }
        ],
        "no-multiple-empty-lines": [
            "off"
        ],
        "no-nested-ternary": "error",
        "no-param-reassign": [
            "off"
        ],
        "no-restricted-syntax": [
            "error",
            {
                "message": "Do not use setTimeout to get around Bugs.",
                "selector": "CallExpression[callee.name='setTimeout']"
            }
        ],
        "no-use-before-define": [
            "off"
        ],
        "object-curly-newline": [
            "error",
            {
                "ObjectExpression": {
                    "consistent": true,
                    "minProperties": 2,
                    "multiline": true
                }
            }
        ],
        "object-property-newline": "warn",
        "one-var-declaration-per-line": [
            "error",
            "initializations"
        ],
        "operator-linebreak": [
            "off"
        ],
        "prettier/prettier": [
            "error",
            {
                "printWidth": 120,
                "singleQuote": false,
                "tabWidth": 4,
                "trailingComma": "es5"
            }
        ],
        "quotes": [
            "error",
            "double"
        ],
        "semi": [
            "error",
            "always"
        ]
    },
    "settings": {
        "import/core-modules": [
            "styled-components"
        ],
        "import/resolver": {
            "node": {
                "moduleDirectory": [
                    "node_modules",
                    "src",
                    "src/js",
                    "src/js/theme"
                ]
            }
        }
    }
}