.eslintrc

{
  "env": {
    "browser": true,
    "es6": true,
    "node": true,
  },
  "extends": "airbnb",
  "parser": "babel-eslint",
  "parserOptions": {
    "ecmaFeatures": {
      "classes": true,
      "jsx": true
    }
  },
  "plugins": [
    "compat",
    "import",
    "jsx-a11y",
    "react"
  ],
  "settings": {
    "polyfills": ["fetch"]
  },
  "rules": {
    "arrow-parens": [2, "as-needed", { "requireForBlockBody": true }],
    "comma-dangle": [2, {
      "arrays": "always-multiline",
      "objects": "always-multiline",
      "imports": "always-multiline",
      "exports": "always-multiline",
      "functions": "ignore"
    }],
    "function-paren-newline": [2, "consistent"],
    "indent": [2, 2, {
      "MemberExpression": "off",
      "SwitchCase": 1
    }],
    "no-console": [1, { "allow": ["error"] }],
    "no-mixed-operators": [0],
    "no-unused-vars": [2, { "varsIgnorePattern": "^css[A-Z][a-z]+$" }],
    "operator-linebreak": [2, "after"],

    "compat/compat": [1],

    "import/extensions": [0, { "extensions": [".js", ".jsx", ".json"] }],
    "import/no-extraneous-dependencies": [0],
    "import/prefer-default-export": [0],

    "jsx-a11y/anchor-is-valid": [1, { "aspects": ["invalidHref"] }],

    "react/destructuring-assignment": [0],
    "react/forbid-prop-types": [1, { "forbid": ["any"] }],
    "react/jsx-props-no-spreading": [0],
    "react/jsx-one-expression-per-line": [0],
    "react/no-array-index-key": [0],
    "react/no-danger": [0],
    "react/no-deprecated": [0],
    "react/prop-types": [1, {"ignore": ["children", "route"]}],
    "react/state-in-constructor": [2, "never"],
    "react/static-property-placement": [2, "static public field"]
  },
  "overrides": [
    {
      "files": ["server/**/*.js", "build/**/*.js"],
      "rules": {
        "compat/compat": [0]
      }
    }
  ]
}