.eslintrc

// .eslintrc
{
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
      "ecmaVersion": 12,
      "sourceType": "module",
    },
    "plugins": ["@typescript-eslint"],
    "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended"],
  
    "rules": {
      "no-unused-vars": "error",
      "prefer-const":"error",
      "no-unused-expressions":"error",
      "no-undef":"error",
      "no-console":"error",
      "@typescript-eslint/consistent-type-definitions": ["error", "type"] ,

      // "@typescript-eslint/no-unused-vars": "error",
      // to enforce using type for object type definitions, can be type or interface 

      // "no-unreachable":"error",
      // // to enforce using type for object type definitions, can be type or interface 
      //  "consistent-type-definitions": ["error", "type"]
    },
  
    "env": {
      "browser": true,
      "es2021": true,
      "node":true
    },
    "globals": {
      "process":"readonly"
    }
  }