.eslintrc.json

{
  "env": {
    "node": true,
    "commonjs": true,
    "es2021": true,
    "jest": true
  },
  "extends": "eslint:recommended",
  "parserOptions": {
    "ecmaVersion": 12
  },
  "ignorePatterns": [
    "dist/*"
  ],
  "rules": {
    "complexity": ["error"],
    "eqeqeq": ["error"],
    "indent": ["error", 4],
    "keyword-spacing": ["error"],
    "max-len": ["error", 125],
    "no-alert": ["error"],
    "no-console": ["error"],
    "no-else-return": ["error"],
    "no-extra-parens": ["error"],
    "no-multi-spaces": ["error"],
    "no-multiple-empty-lines": ["error", { "max" : 1 }],
    "no-unreachable-loop": ["error"],
    "no-template-curly-in-string": ["error"],
    "object-curly-spacing": ["error", "always"],
    "quotes": ["error", "single"],
    "semi": ["error", "never"]
  },
  "overrides": [
    {
      "files": ["*.ts"],
      "parserOptions": {
        "project": [
          "tsconfig.json"
        ],
        "createDefaultProgram": true
      },
      "extends": [
        "eslint:recommended",
        "plugin:@typescript-eslint/recommended",
        "plugin:@typescript-eslint/recommended-requiring-type-checking"
      ],
      "rules": {
        "@typescript-eslint/unbound-method": "off"
      }
    }
  ]
}