.eslintrc

{
  "root": true,
  // parse TypeScript files
  // https://github.com/typescript-eslint/typescript-eslint/tree/master/packages/parser
  "parser": "@typescript-eslint/parser",
  // configure eslint using options described at
  // https://github.com/typescript-eslint/typescript-eslint/tree/master/packages/eslint-plugin
  "plugins": ["@typescript-eslint"],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:prettier/recommended",
    "prettier"
  ],
  "ignorePatterns": [
    "dist",
    "node_modules",
    "jest.config.base.js",
    "jest.bench.config.js",
    "jest.config.js",
    "babel.config.js",
    "build.js",
    "update-pkg.js"
  ],
  "rules": {
    "no-var": "error",
    "prefer-const": "warn",
    "no-misleading-character-class": "warn",
    "@typescript-eslint/no-unused-vars": [
      "warn",
      { "argsIgnorePattern": "^_" }
    ],
    "@typescript-eslint/ban-ts-comment": "off",
    "@typescript-eslint/no-empty-interface": "off",
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "@typescript-eslint/no-empty-function": "off"
  }
}