.eslintrc.js

module.exports = {
  "root": true,
  "env": {
    "mocha": true,
    "node": true,
    "es6": true
  },
  "parser": "@typescript-eslint/parser",
  "plugins": [
    "@typescript-eslint",
    "prettier",
    "eslint-plugin-import"
  ],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "prettier"
  ],
  "rules": {
    "prettier/prettier": ["error", {}, { usePrettierrc: true }],
    "@typescript-eslint/no-require-imports": "error",
    "@typescript-eslint/no-unused-vars": ["error", {
      "varsIgnorePattern": "^_"
    }],
    "@typescript-eslint/explicit-function-return-type": ["error", {
      "allowExpressions": true
    }],
    "@typescript-eslint/ban-ts-comment": "error",
    "@typescript-eslint/no-explicit-any": "error",
    "@typescript-eslint/explicit-module-boundary-types": "error",
    "@typescript-eslint/no-use-before-define": "off",
    "prefer-const": "error",
    "no-consecutive-blank-lines": 0,
    "no-console": "error",
    "@typescript-eslint/naming-convention": ["error",
      {selector: "default", format: ['camelCase']},
      {
        selector: [
          "classProperty", "parameterProperty", "objectLiteralProperty",
          "classMethod", "parameter"
        ],
        format: ['camelCase'], leadingUnderscore: "allow"
      },
      //variable must be in camel or upper case
      {selector: "variable", format: ["camelCase", "UPPER_CASE"], leadingUnderscore: "allow"},
      //classes and types must be in PascalCase
      {selector: ["typeLike", "enum"], format: ['PascalCase']},
      {selector: "enumMember", format: null},
      {selector: "typeProperty", format: ['PascalCase', 'camelCase']},
      //ignore rules on destructured params
      {
        selector: "variable",
        modifiers: ["destructured"],
        format: null
      }
    ],
    "import/order": [
      "error",
      {
        "groups": ["builtin", "external", "parent", "internal", "sibling"],
        "newlines-between": "always",
        "alphabetize": {
          order: 'asc'
        }
      },
    ]
  }
}