.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es6: true
  },
  extends: ["airbnb", "react-app", "prettier"],
  globals: {
    Atomics: "readonly",
    SharedArrayBuffer: "readonly"
  },
  parserOptions: {
    ecmaFeatures: {
      jsx: true
    },
    ecmaVersion: 2018,
    sourceType: "module"
  },
  plugins: ["react", "prettier"],
  rules: {
    "react/state-in-constructor": 0,
    "prettier/prettier": ["error", { singleQuote: true, trailingComma: "es5" }],
    "react/jsx-filename-extension": [1, { extensions: [".js", ".jsx"] }],
    "import/no-extraneous-dependencies": [
      "error",
      {
        devDependencies: true,
        optionalDependencies: false,
        peerDependencies: false
      }
    ],
    "react/jsx-props-no-spreading": 0,
    "react/state-in-constructor": 0,
    "no-plusplus": [0, { "allowForLoopAfterthoughts": true }],
    "no-param-reassign": [2, { "props": false }],
  }
};