.eslintrc.json

{
  "env": {
    "es2021": true,
    "node": true,
    "commonjs": true
  },
  "extends": ["eslint:recommended", "prettier"],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 12,
    "sourceType": "module"
  },
  "plugins": ["@typescript-eslint", "import"],
  "rules": {
    "no-console": 0,
    "no-undefined": 0,
    "block-scoped-var": "error",
    "consistent-return": "error",
    "no-magic-numbers": [
      "error",
      {
        "ignoreArrayIndexes": true,
        "ignore": [-1, 0, 1, 2, 10]
      }
    ],
    "wrap-iife": "off",
    "no-shadow": "error",
    "array-bracket-newline": "error",
    "brace-style": "error",
    "eqeqeq": "error",
    "complexity": "error",
    "no-var": "error",
    "no-prototype-builtins": 0
  },
  "overrides": [
    {
      "files": ["*.ts", "*.tsx"],
      "parser": "@typescript-eslint/parser",
      "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended"],
      "plugins": ["@typescript-eslint"],
      "rules": {
        "no-shadow": "off",
        "@typescript-eslint/no-shadow": "error",
        "no-unused-vars": "off",
        "@typescript-eslint/no-unused-vars": "warn",
        "@typescript-eslint/no-explicit-any": "off",
        "@typescript-eslint/ban-ts-comment": "off",
        "@typescript-eslint/explicit-module-boundary-types": "off",
        "@typescript-eslint/no-inferrable-types": "off",
        "no-magic-numbers": "off",
        "@typescript-eslint/no-magic-numbers": [
          "warn",
          {
            "ignoreArrayIndexes": true,
            "ignoreEnums": true,
            "ignore": [-1, 0, 1, 2, 10]
          }
        ],
        "@typescript-eslint/no-namespace": ["error", { "allowDeclarations": true }]
      }
    }
  ],
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"]
    },
    "import/resolver": {
      "typescript": {
        "alwaysTryTypes": true
      }
    }
  }
}