.eslintrc

{
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": false
    },
    "ecmaVersion": 6,
    "tsconfigRootDir": ".",
    "project": "./tsconfig.json"
  },
  "env": {
    "es6": true,
    "node": true,
    "browser": true,
    "jquery": true
  },
  "plugins": ["@typescript-eslint", "prettier"],
  "extends": [
    "jquery",
    "airbnb-base",
    "plugin:@typescript-eslint/recommended",
    "plugin:import/typescript",
    "plugin:prettier/recommended",
    "prettier/@typescript-eslint"
  ],
  "rules": {
    "indent": [
      "error",
      4
    ],
    "no-console": 0,
    "no-param-reassign": 0,
    "no-plusplus": [
      "error",
      {
        "allowForLoopAfterthoughts": true
      }
    ],
    "spaced-comment": ["error", "always", {
      "line": {
        "markers": ["/"],
        "exceptions": ["-", "+"]
      },
      "block": {
        "markers": ["!"],
        "exceptions": ["*"],
        "balanced": true
      }
    }],
    "no-unused-expressions": ["warn", {
      "allowShortCircuit": true,
      "allowTernary": true
    }], // https://eslint.org/docs/rules/no-unused-expressions
    "no-trailing-spaces": [2, { "skipBlankLines": true }],
    "prefer-template": 0,
    "import/extensions": 0,
    "lines-between-class-members": 0,
    "@typescript-eslint/prefer-interface": "off", // also want to use "type"
    "@typescript-eslint/explicit-function-return-type": "off", // annoying to force return type
    "@typescript-eslint/explicit-member-accessibility": "off",
    "@typescript-eslint/no-non-null-assertion": "off",
    "@typescript-eslint/no-var-requires": "off",
    "@typescript-eslint/ban-ts-ignore": "off"
  }
}