.eslintrc.json

{
  "env": {
    "browser": true,
    "node": true,
    "es6": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:import/recommended",
    "prettier"
  ],
  "ignorePatterns": ["**/*.d.ts", "**/*.js"],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "plugins": ["@typescript-eslint", "license-header"],
  "rules": {
    "no-constant-condition": [
      "error",
      {
        "checkLoops": false
      }
    ],
    "no-console": [
      "error",
      {
        "allow": ["warn", "error", "info", "debug"]
      }
    ],
    "@typescript-eslint/ban-ts-comment": [
      "error",
      {
        "ts-expect-error": "allow-with-description"
      }
    ],
    "@typescript-eslint/ban-tslint-comment": "error",
    "@typescript-eslint/consistent-type-assertions": [
      "error",
      {
        "assertionStyle": "as",
        "objectLiteralTypeAssertions": "never"
      }
    ],
    "@typescript-eslint/no-inferrable-types": "off",
    "@typescript-eslint/no-explicit-any": 0,
    "@typescript-eslint/no-for-in-array": "error",
    "@typescript-eslint/no-invalid-void-type": "error",
    "@typescript-eslint/no-namespace": "error",
    "@typescript-eslint/no-non-null-asserted-optional-chain": "error",
    "@typescript-eslint/no-unused-vars": [
      "error",
      {
        "ignoreRestSiblings": true,
        "args": "none"
      }
    ],
    "@typescript-eslint/prefer-for-of": ["error"],
    // "@typescript-eslint/prefer-optional-chain": ["error"],
    "@typescript-eslint/prefer-ts-expect-error": ["error"],
    "license-header/header": ["error", "./license-header.js"],
    "import/no-unresolved": "off",
    "import/extensions": ["error", "ignorePackages"],
    "import/newline-after-import": [
      "error",
      {
        "count": 1
      }
    ],
    "import/order": [
      "error",
      {
        "groups": [
          "builtin",
          "external",
          "internal",
          ["index", "sibling"],
          "object",
          "type"
        ],
        "newlines-between": "always",
        "pathGroupsExcludedImportTypes": ["builtin"],
        "alphabetize": {
          "order": "asc",
          "caseInsensitive": true
        }
      }
    ]
  }
}