.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "env": {
    "browser": true,
    "es6": true
  },
  "extends":  [
    "eslint:recommended",
    "plugin:prettier/recommended",
    "plugin:unicorn/recommended",
    "prettier/unicorn",
    "plugin:import/errors",
    "plugin:import/warnings"
  ],
  "plugins": [
    "prettier",
    "unicorn"
  ],
  "settings": {
    "import/resolver": {
      "typescript": {} // this loads <rootdir>/tsconfig.json to eslint
    }
  },
  "rules":  {
    "max-len": ["error", {"code": 100, "ignoreUrls": true}],
    "prettier/prettier": ["error", {"printWidth": 100, "singleQuote": true}],
    "unicorn/prevent-abbreviations": "off",
    "unicorn/filename-case": "off",
    "import/namespace": "off"
  },
  "overrides": [
    {
      // Enable TypeScript rules for .ts files.
      "files": ["*.ts", "*.tsx"],
      "extends":  [
        "eslint:recommended",
        "plugin:@typescript-eslint/recommended",
        "plugin:@typescript-eslint/eslint-recommended",
        "plugin:prettier/recommended",
        "prettier/@typescript-eslint",
        "prettier/unicorn",
        "plugin:import/errors",
        "plugin:import/warnings",
        "plugin:import/typescript"
      ],
      "plugins": [
        "@typescript-eslint",
        "prettier",
        "unicorn"
      ]
    }
  ]
}