.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true,
    "node": true,
    "mocha": true
  },
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "project": "./tsconfig.json"
  },
  "plugins": ["@typescript-eslint/eslint-plugin", "prettier"],
  "extends": [
    "prettier",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "eslint-config-prettier/@typescript-eslint"
  ],
  "ignorePatterns": ["dist", "webpack.config.js"],
  "rules": {
    "@typescript-eslint/ban-ts-comment": "warn",
    "arrow-parens": ["error", "as-needed"],
    "comma-dangle": ["error", { "objects": "never" }],
    "indent": ["error", 2],
    "linebreak-style": ["error", "unix"],
    "no-console": "off",
    "no-multiple-empty-lines": "error",
    "no-unused-vars": ["error", { "args": "none" }],
    "no-var": "error",
    "object-curly-spacing": ["error", "always", { "objectsInObjects": false }],
    "prefer-arrow-callback": "error",
    "prefer-const": "error",
    "prefer-rest-params": "error",
    "prefer-spread": "error",
    "quotes": ["error", "double"],
    "semi": ["error", "always"],
    "space-before-function-paren": [
      "error",
      {
        "anonymous": "ignore",
        "named": "ignore",
        "asyncArrow": "ignore"
      }
    ]
  }
}