.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true,
    "commonjs": true,
    "node": true
  },
  "extends": [
    "airbnb/base",
    "plugin:@typescript-eslint/recommended",
    "prettier/@typescript-eslint",
    "plugin:mocha/recommended"
  ],
  "plugins": ["@typescript-eslint", "mocha"],
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "rules": {
    "@typescript-eslint/explicit-function-return-type": 0,
    "@typescript-eslint/no-explicit-any": 0,
    "@typescript-eslint/explicit-member-accessibility": 0,
    "@typescript-eslint/no-unused-vars": [0, { "argsIgnorePattern": "^_" }],
    "@typescript-eslint/no-use-before-define": "off",
    "object-curly-newline": ["error", {
      "ImportDeclaration": "never"
    }],
    "no-undefined": 0,
    "default-case": 0,
    "import/prefer-default-export": "off",
    "no-useless-constructor": "off",
    "no-unused-expressions": "off",
    "max-len": ["warn", { "code":  120 } ],
    "mocha/no-mocha-arrows": "off",
    "import/no-unresolved": "off",
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        "js": "never",
        "ts": "never"
      }
    ]
  },
  "overrides": [
    {
      "files": [
        "**/*.spec.ts"
      ],
      "env": {
        "mocha": true
      },
      "rules": {
        "import/no-extraneous-dependencies": "off"
      }
    }
  ],
  "settings": {
    "indent": ["error",
      2],
    "import/extensions": [".js", ".ts"],
    "import/parsers": {
      "@typescript-eslint/parser": [
        ".ts", ".tsx"
      ]
    },
    "import/resolver": {
      "node": {
        "extensions": ["js", ".ts"]
      }
    }
  }
}