.eslintrc.json

{
  "$schema": "https://json.schemastore.org/eslintrc",
  "extends": ["next/core-web-vitals", "prettier"],
  "plugins": ["prefer-arrow-functions"],
  "rules": {
    "import/extensions": ["off"],
    "react/jsx-props-no-spreading": ["off"],
    "react/jsx-filename-extension": [
      "warn",
      {
        "extensions": [".tsx"]
      }
    ],
    "react/react-in-jsx-scope": ["off"],
    "react/function-component-definition": [
      "error",
      {
        "namedComponents": "arrow-function",
        "unnamedComponents": "arrow-function"
      }
    ],
    "prefer-arrow-functions/prefer-arrow-functions": [
      "warn",
      {
        "allowNamedFunctions": false,
        "classPropertiesAllowed": false,
        "disallowPrototype": false,
        "returnStyle": "implicit",
        "singleReturnOnly": false
      }
    ],
    "prefer-arrow-callback": [
      "error",
      {
        "allowNamedFunctions": true
      }
    ],
    "func-style": [
      "error",
      "expression",
      {
        "allowArrowFunctions": true
      }
    ]
  },
  "overrides": [
    {
      "files": ["**/*.ts", "**/*.tsx"],
      "extends": [
        "plugin:@typescript-eslint/recommended",
        "next/core-web-vitals",
        "prettier"
      ],
      "plugins": ["@typescript-eslint", "prefer-arrow-functions"],
      "parser": "@typescript-eslint/parser"
    }
  ]
}