.eslintrc.json

{
    "env": {
        "browser": true,
        "node": true,
        "es6": true
    },
    "extends": [
        "airbnb-base",
        "plugin:import/errors",
        "plugin:import/warnings",
        "plugin:import/typescript",
        "plugin:@typescript-eslint/recommended",
        "plugin:prettier/recommended",
        "prettier/@typescript-eslint"
    ],
    "globals": {
        "Atomics": "readonly",
        "SharedArrayBuffer": "readonly"
    },
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
        "ecmaVersion": 2018,
        "sourceType": "module"
        //"project": "./tsconfig.json"  // bad performance
    },
    "plugins": [
        "@typescript-eslint",
        "prettier"
    ],
    // overwrite rules on "extends"
    "rules": {
        "prettier/prettier": [
            // "warn", {
            //     "singleQuote": true
            //     //"bracketSpacing": false
            // },
            "error", {
                "singleQuote": true,
                "usePrettierrc": false
            }
        ],
        "no-unused-vars": "warn",
        "no-use-before-define": "warn",
        "import/prefer-default-export": "off",
        "import/newline-after-import": "off",
        "object-shorthand": "off",
        "no-console": "off",
        "no-unexpected-multiline": "error",
        "@typescript-eslint/explicit-function-return-type": "off",
        "prefer-destructuring": "off",
        //"array-bracket-spacing": ["error", "always", { "singleValue": true, "arraysInArrays": false }],
        "block-spacing": ["error", "always"],
        "brace-style": [ "error", "1tbs", { "allowSingleLine": true } ],
        "comma-spacing": ["error", { "before": false, "after": true }],
        "comma-style": [ 1, "last" ],
        "no-param-reassign": [2, { "props": false }],
        "import/extensions": [
            "error",
            "ignorePackages",
            {
              "js": "never",
              "jsx": "never",
              "ts": "never",
              "tsx": "never"
            }
        ]
    }
}