.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "google"
  ],
  "env": {
    "browser": true,
    "commonjs": true,
    "es6": true,
    "node": true,
    "jest": true
  },
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": false
    },
    "experimentalObjectRestSpread": true
  },
  "plugins": [
    "@typescript-eslint"
  ],
  "rules": {
    "require-jsdoc": [
      2,
      {
        "require": {
          "FunctionDeclaration": false,
          "MethodDefinition": false,
          "ClassDeclaration": false
        }
      }
    ],
    "quotes": [
      "error",
      "single"
    ],
    "max-len": [
      2,
      120,
      4
    ],
    "indent": [
      "error",
      4,
      {
        "SwitchCase": 1
      }
    ],
    "linebreak-style": [
      "error",
      "unix"
    ],
    "arrow-parens": [
      "warn",
      "as-needed"
    ],
    "curly": "error",
    "no-else-return": "error",
    "no-unneeded-ternary": "error",
    "no-useless-return": "error",
    "no-var": "error",
    "one-var": [
      "error",
      "never"
    ],
    "@typescript-eslint/no-unused-vars": ["error", {
      "vars": "all",
      "args": "after-used",
      "ignoreRestSiblings": false
    }],
    "prefer-arrow-callback": "error",
    "strict": "error",
    "symbol-description": "error",
    "yoda": [
      "error",
      "never",
      {
        "exceptRange": true
      }
    ],
    "no-trailing-spaces": [
      "error",
      {
        "skipBlankLines": true
      }
    ],
    "space-before-function-paren": ["off", "always"],
    "@typescript-eslint/no-explicit-any": ["off", { "ignore-rest-args": true }]
  }
}