.eslintrc

{
  "root": true,
  "ignorePatterns": ["mocks", "index.*", "dist", "node_modules"],
  "extends": ["plugin:jest/recommended"],
  "plugins": ["jest"],
  "parserOptions": {
    "sourceType": "module"
  },
  "env": {
    "browser": true,
    "node": true,
    "es6": true,
    "jest": true
  },
  "overrides": [
    {
      "files": ["*.ts"],
      "parser": "@typescript-eslint/parser",
      "parserOptions": {
        "project": "./tsconfig.json",
        "tsconfigRootDir": "."
      },
      "plugins": ["@typescript-eslint"],
      "extends": [
        "plugin:@typescript-eslint/recommended",
        "plugin:@typescript-eslint/recommended-requiring-type-checking"
      ],
      "rules": {
        "@typescript-eslint/no-empty-interface": "off",
        "prefer-rest-params": "off",
        "no-undef": "off", // TypeScript does this for us
        "no-use-before-define": "off" // TypeScript does this for us
      }
    }
  ]
}