.eslintrc

{
  "parser": "babel-eslint",
  "env": {
    "browser": true,
    "es6": true,
    "node": true,
    "mocha": true
  },
  "parserOptions": {
    "sourceType": "module"
  },
  "overrides": [
    {
      "files": "wdio.conf.js",
      "extends": [
        "eslint:recommended", "google"
      ],
      "rules": {
        "max-len": "off"
      }
    },
    {
      "files": ["test/e2e/*.js"],
      "globals": {
        "$": false,
        "browser": false
      },
      "extends": [
        "eslint:recommended", "google"
      ],
      "rules": {
        "no-invalid-this": "off",
        "max-len": [2, {
          "ignorePattern": "^\\s*import|= require\\(|^\\s*it\\(|^\\s*describe\\(",
          "ignoreUrls": true
        }]
      }
    },
    {
      "files": "src/**/*.ts",
      "parser": "@typescript-eslint/parser",
      "extends": [
        "plugin:@typescript-eslint/recommended"
      ],
      "rules": {
        "@typescript-eslint/no-non-null-assertion": "off",
        "@typescript-eslint/no-use-before-define": "off",
        "@typescript-eslint/explicit-function-return-type": "off",
        "@typescript-eslint/explicit-module-boundary-types": "off",
        "@typescript-eslint/camelcase": "off",
        "node/no-missing-import": "off",
        "node/no-unsupported-features/es-syntax": "off",
        "node/no-missing-require": "off",
        "node/shebang": "off",
        "no-dupe-class-members": "off"
      },
      "parserOptions": {
        "ecmaVersion": 2018,
        "sourceType": "module"
      }
    }
  ]
}