.eslintrc

{
  "env": {
    "browser": true,
    "es2021": true
  },
  "extends": ["plugin:react/recommended", "airbnb"],
  "settings": {
    "react": {
      "version": "detect"
    },
    "import/resolver": {
      "node": {
        "extensions": [".js", ".jsx"]
      }
    }
  },
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": true
    },
    "ecmaVersion": 12,
    "sourceType": "module"
  },
  "plugins": ["react"],
  "rules": {
    "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }],
    "semi": [2, "never"],
    "no-unused-vars": "error",

    // AirBnB Rule Overrides
    "no-plusplus": 0,
    "no-alert": 0,
    "no-use-before-define": 0,

    "react/jsx-indent": ["error", 4],
    "react/jsx-indent-props": ["error", 4],

    // Use AirBnB config rule with length of 120
    "max-len": [
      "error",
      120,
      2,
      {
        "ignoreUrls": true,
        "ignoreComments": false,
        "ignoreRegExpLiterals": true,
        "ignoreStrings": true,
        "ignoreTemplateLiterals": true
      }
    ],

    // Removed ForOfStatement restriction from default AirBnB restricted syntaxes
    "no-restricted-syntax": [
      "error",
      {
        "selector": "ForInStatement",
        "message":
          "for..in loops iterate over the entire prototype chain, which is virtually never what you want. Use Object.{keys,values,entries}, and iterate over the resulting array."
      },
      {
        "selector": "LabeledStatement",
        "message":
          "Labels are a form of GOTO; using them makes code confusing and hard to maintain and understand."
      },
      {
        "selector": "WithStatement",
        "message":
          "`with` is disallowed in strict mode because it makes code impossible to predict and optimize."
      }
    ]
  }
}