.eslintrc

{
  "parser": "@typescript-eslint/parser",
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:jest/style",
    "plugin:jest/recommended",
    "prettier"
  ],
  "plugins": ["@typescript-eslint"],
  "parserOptions": {
    "project": "./tsconfig.eslint.json"
  },
  "root": true,
  "rules": {
    // Enforce the consistent use of either backticks, double, or single quotes
    "quotes": ["warn", "single"],
    // Enforce the consistent use of either function declarations or expressions
    "func-style": ["warn", "expression", { "allowArrowFunctions": true }],
    // Enforces return statements in callbacks of array's methods
    "array-callback-return": ["warn", { "checkForEach": true }],
    // Disallow await inside of loops, should use Promise.all()
    "no-await-in-loop": "warn",
    // Allow non-explicit return types on functions and class methods
    "@typescript-eslint/explicit-function-return-type": "off",
    // Allow non-explicit return types on exported functions
    "@typescript-eslint/explicit-module-boundary-types": "off",
    // Disallow usage of the any type
    "@typescript-eslint/no-explicit-any": 1,
    // Disallows explicit type declarations for variables or parameters initialized to a number, string, or boolean
    "@typescript-eslint/no-inferrable-types": [
      "error",
      {
        "ignoreParameters": true
      }
    ],
    // Error on declared but not used variable
    "@typescript-eslint/no-unused-vars": "error"
  }
}