.eslintrc.json

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "plugins": [
    "@typescript-eslint"
  ],
  "parserOptions": {
    "ecmaVersion": 2019,
    "sourceType": "module",
    "project": "./tsconfig.json",
    "tsconfigRootDir": "."
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended"
  ],
  "env": {
    "es6": true,
    "browser": true,
    "node": true,
    "jest": true
  },
  "rules": {
    "@typescript-eslint/no-var-requires": "off",
    "@typescript-eslint/explicit-member-accessibility": "off",
    "@typescript-eslint/no-explicit-any": "off",
    "max-len": "off",
    "sort-imports": "off",
    "require-atomic-updates": "warn",
    "no-console": "warn",
    "@typescript-eslint/ban-ts-comment": [
      "warn",
      {
        "ts-ignore": false
      }
    ],
    "@typescript-eslint/no-inferrable-types": [
      "error",
      {
        "ignoreParameters": false,
        "ignoreProperties": false
      }
    ],
    "keyword-spacing": "error",
    "arrow-spacing": "error",
    "key-spacing": [
      "error",
      {
        "mode": "minimum"
      }
    ],
    "semi-spacing": "error",
    "comma-spacing": "error",
    "no-multi-spaces": "error",
    "no-trailing-spaces": "error",
    "no-useless-escape": "error",
    "indent": "off", // to not interfere with @typescript just below
    "@typescript-eslint/indent": [
      "error",
      2
    ],
    "@typescript-eslint/prefer-for-of": "error",
    "@typescript-eslint/consistent-type-assertions": [
      "error",
      {
        "assertionStyle": "as",
        "objectLiteralTypeAssertions": "allow-as-parameter"
      }
    ],
    "no-empty-function": "off", // to not interfere with @typescript just below
    "@typescript-eslint/no-empty-function": "error",
    "@typescript-eslint/no-empty-interface": [
      "error",
      {
        "allowSingleExtends": true
      }
    ],
    "one-var": [
      "error",
      "never"
    ],
    "no-var": "error",
    "no-bitwise": "error",
    "@typescript-eslint/naming-convention": [
      "error",
      {
        "selector": "interface",
        "format": [
          "PascalCase"
        ],
        "prefix": [
          "I"
        ]
      }
    ],
    "prefer-const": "error",
    "@typescript-eslint/no-unused-expressions": "error",
    "no-unused-vars": "off", // to not interfere with @typescript just below
    "@typescript-eslint/no-unused-vars": [
      "error",
      {
        "argsIgnorePattern": "[_].*"
      }
    ],
    "quotes": [
      "error",
      "double"
    ],
    "no-prototype-builtins": 0,
    "comma-dangle": [
      "error",
      "always-multiline"
    ],
    "semi": [
      "error",
      "always"
    ],
    "eol-last": "error",
    "eqeqeq": "error",
    "getter-return": 0,
    "linebreak-style": [
      "error",
      "unix"
    ]
  }
}