.eslintrc.json

{
  "parser": "@babel/eslint-parser",
  "extends": [
    "eslint:recommended",
    "plugin:react/recommended",
    "plugin:prettier/recommended",
    "plugin:@next/next/recommended"
  ],
  "parserOptions": {
    "ecmaVersion": 2020,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true
    }
  },
  "env": {
    "browser": true,
    "es6": true,
    "node": true,
    "jest": true
  },
  "globals": {
    "Drupal": true,
    "drupalSettings": true,
    "jQuery": true
  },
  "rules": {
    "react/prop-types": 0,
    "prettier/prettier": ["error"],
    "react/display-name": "off",
    "react/react-in-jsx-scope": "off",
    "import/export": 0,
    "no-unused-vars": "off"
  },
  "settings": {
    "react": {
      "version": "detect"
    }
  },
  "overrides": [
    {
      "files": ["*.ts", "*.tsx"],
      "parser": "@typescript-eslint/parser",
      "plugins": ["@typescript-eslint/eslint-plugin"],
      "extends": [
        "plugin:@typescript-eslint/eslint-recommended",
        "plugin:@typescript-eslint/recommended"
      ],
      "rules": {
        "@typescript-eslint/explicit-module-boundary-types": "off",
        "@typescript-eslint/no-unused-vars": ["warn", { "args": "none" }]
      }
    }
  ]
}