.eslintrc

{
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 2019,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true
    },
    "project": "./tsconfig.json"
  },
  "plugins": ["@typescript-eslint/eslint-plugin"],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "eslint-config-prettier",
    "eslint-config-prettier/@typescript-eslint"
  ],
  "rules": {
    "valid-typeof": "error",
    "@typescript-eslint/no-var-requires": 0,
    "strict": ["error", "never"]
  },
  "env": {
    "node": true
  },
  "overrides": [
    {
      "files": "**/*.+(ts|tsx)",
      "parser": "@typescript-eslint/parser",
      "parserOptions": {
        "project": "./tsconfig.json"
      },
      "plugins": ["@typescript-eslint/eslint-plugin"],
      "extends": [
        "plugin:@typescript-eslint/eslint-recommended",
        "plugin:@typescript-eslint/recommended",
        "eslint-config-prettier/@typescript-eslint"
      ]
    }
  ]
}