.eslintrc.json

{
  "env": {
    "es6": true,
    "node": true
  },
  "extends": ["eslint:recommended"],
  "parser": "@typescript-eslint/parser",
  "root": true,
  "plugins": ["@typescript-eslint"],
  "overrides": [
    {
      "files": ["**/*.ts", "**/*.tsx"],
      "extends": [
        "eslint:recommended",
        "plugin:@typescript-eslint/recommended"
      ],
      "parserOptions": {
        "projecasdft": true,
        "project": [
          "./tsconfig.json",
          "./tsconfig.build.json",
          "./tsconfig.examples.json",
          "./test/tsconfig.test.json"
        ]
      },
      "rules": {
        "@typescript-eslint/await-thenable": "error",
        "@typescript-eslint/dot-notation": "off",
        "@typescript-eslint/no-unused-vars": "warn",

        "@typescript-eslint/no-unused-expressions": "error",
        "@typescript-eslint/no-var-requires": "error",
        "@typescript-eslint/prefer-namespace-keyword": "error",

        "@typescript-eslint/no-explicit-any": "error",
        "@typescript-eslint/no-floating-promises": "off",
        "@typescript-eslint/no-inferrable-types": "off",
        "@typescript-eslint/promise-function-async": "off",
        "@typescript-eslint/no-use-before-define": "off",
        "@typescript-eslint/no-non-null-assertion": "off",
        "@typescript-eslint/ban-types": "off",
        "@typescript-eslint/explicit-module-boundary-types": "off",
        "@typescript-eslint/ban-ts-comment": "off",

        "no-dupe-class-members": "off",
        "no-param-reassign": ["error"],
        "array-bracket-spacing": ["error", "never"],
        "indent": ["off"],
        "linebreak-style": ["error", "unix"],
        "lines-between-class-members": ["warn", "always"],
        "semi": "off",
        "@typescript-eslint/semi": ["error"],
        "new-cap": "off",
        "no-console": "off",
        "no-debugger": "off",
        "no-mixed-spaces-and-tabs": 2,
        "no-use-before-define": [2, "nofunc"],
        "no-unreachable": ["warn"],
        "no-unused-vars": ["warn"],
        "no-extra-parens": ["off"],
        "no-mixed-operators": ["off"],
        "quotes": [2, "single", "avoid-escape"],
        "block-scoped-var": 2,
        "brace-style": [2, "1tbs", { "allowSingleLine": true }],
        "computed-property-spacing": [2, "never"],
        "keyword-spacing": 2,
        "space-unary-ops": 2,
        "sort-imports": [
          "error",
          {
            "ignoreCase": false,
            "ignoreDeclarationSort": true,
            "ignoreMemberSort": false,
            "memberSyntaxSortOrder": ["none", "all", "multiple", "single"],
            "allowSeparatedGroups": false
          }
        ],
        "max-len": ["warn", { "code": 140 }]
      }
    },
    {
      "files": ["examples/*.js"],
      "extends": ["eslint:recommended"]
    }
  ]
}