.eslintrc.json

{
    "env": {
        "browser": true,
        "es2020": true
    },
    "extends": [
        "plugin:@typescript-eslint/recommended",
        "plugin:import/recommended"
    ],
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
        "ecmaVersion": 11,
        "sourceType": "module"
    },
    "plugins": [
        "@typescript-eslint",
        "import"
    ],
    "rules": {
        "no-use-before-define": "off",
        "@typescript-eslint/no-use-before-define": "error",
        "import/extensions": [
            "error",
            "ignorePackages",
            {
                "ts": "never"
            }
        ],
        "no-shadow": "off",
        "@typescript-eslint/no-shadow": "error",
        "@typescript-eslint/explicit-function-return-type": [
            "warn",
            {
                "allowExpressions": true
            }
        ],
        "max-len": [
            "warn",
            {
                "code": 120
            }
        ],
        "camelcase": "warn",
        "import/prefer-default-export": "off",
        "no-console": "warn",
        "semi": [
            "warn",
            "always"
        ],
        "@typescript-eslint/semi": "warn"
    },
    "settings": {
        "import/resolver": {
            "typescript": {
                "extensions": [
                    ".ts"
                ]
            }
        }
    }
}