.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "prettier"
  ],
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module",
    "project": "./tsconfig.json"
  },
  "ignorePatterns": ["dist/", "build/"],
  "rules": {
    "eqeqeq": "error",
    "prettier/prettier": "error",
    "no-console": "off",
    "no-plusplus": [
      "error",
      {
        "allowForLoopAfterthoughts": true
      }
    ],
    "no-unused-expressions": [
      "error",
      {
        "allowShortCircuit": true
      }
    ],
    "spaced-comment": [
      "error",
      "always",
      {
        "markers": ["/"]
      }
    ],
    "@typescript-eslint/await-thenable": "error",
    "@typescript-eslint/ban-ts-comment": "error",
    "@typescript-eslint/ban-types": "off",
    "@typescript-eslint/explicit-module-boundary-types": "error",
    "@typescript-eslint/lines-between-class-members": [
      "error",
      "always",
      {
        "exceptAfterSingleLine": true
      }
    ],
    "@typescript-eslint/prefer-namespace-keyword": "off",
    "@typescript-eslint/no-empty-function": "off",
    "@typescript-eslint/no-explicit-any": "off",
    "@typescript-eslint/no-namespace": [
      "error",
      {
        "allowDeclarations": true
      }
    ],
    "@typescript-eslint/no-non-null-assertion": "off",
    "@typescript-eslint/no-unsafe-declaration-merging": "off",
    "@typescript-eslint/no-unused-vars": "off",
    "@typescript-eslint/array-type": [
      "error",
      {
        "default": "array"
      }
    ]
  },
  "plugins": ["prettier", "@typescript-eslint"],
  "parser": "@typescript-eslint/parser"
}