Configuração para eslint.

.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true
  },
  "extends": [
    "plugin:react/recommended",
    "airbnb",
    "prettier",
    "prettier/react"
  ],
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "parser": "babel-eslint",
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": true
    },
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "plugins": [
    "react",
    "prettier"
  ],
  "rules": {
    "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }],
    "prettier/prettier": "error",
    "import/prefer-default-export": "off"
  }
}