.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es2021: true,
    node: true,
  },
  extends: ["eslint:recommended", "plugin:react/recommended"],
  overrides: [
    {
      files: ["*.jsx", "*.js"],
    },
  ],
  parserOptions: {
    ecmaVersion: "latest",
    sourceType: "module",
    ecmaFeatures: {
      jsx: true,
    },
  },
  plugins: ["react"],
  rules: {
    "no-alert": 2,
    "no-array-constructor": 2,
    "no-caller": 2,
    "no-catch-shadow": 2,
    "no-eval": 2,
    "no-extend-native": 2,
    "no-extra-bind": 2,
    "no-implied-eval": 2,
    "no-iterator": 2,
    "no-label-var": 2,
    "no-labels": 2,
    "no-lone-blocks": 2,
    "no-loop-func": 2,
    "no-multi-spaces": 2,
    "no-multi-str": 2,
    "no-native-reassign": 2,
    "no-new": 2,
    "no-new-func": 2,
    "no-new-object": 2,
    "no-new-wrappers": 2,
    "no-octal-escape": 2,
    "no-process-exit": 2,
    "no-proto": 2,
    "no-return-assign": 2,
    "no-script-url": 2,
    "no-sequences": 2,
    "no-shadow": 2,
    "no-shadow-restricted-names": 2,
    "no-spaced-func": 2,
    "no-trailing-spaces": 2,
    "no-undef-init": 2,
    "no-underscore-dangle": 2,
    "no-unused-expressions": 2,
    "no-use-before-define": 2,
    "no-with": 2,
    camelcase: 2,
    "comma-spacing": 2,
    "consistent-return": 2,
    curly: [2, "all"],
    "dot-notation": [2, { allowKeywords: true }],
    "eol-last": 2,
    "no-extra-parens": [2, "functions"],
    eqeqeq: 2,
    "key-spacing": [2, { beforeColon: false, afterColon: true }],
    "new-cap": 2,
    "new-parens": 2,
    quotes: [2, "double"],
    semi: 2,
    "semi-spacing": [2, { before: false, after: true }],
    "space-infix-ops": 2,
    "keyword-spacing": 2,
    "space-unary-ops": [2, { words: true, nonwords: false }],
    strict: [2, "function"],
    yoda: [2, "never"],
  },
  settings: {
    react: {
      version: "detect", // React version
    },
  },
};