.eslintrc

{
  "parser": "babel-eslint",
  "extends": "airbnb",
  "plugins": ["flowtype", "flowtype-errors"],
  "rules": {
    "semi": [2, "never"],
    "arrow-parens": 0,
    "class-methods-use-this": 0,
    "symbol-description": 0,
    "no-unused-vars": [2, { "varsIgnorePattern": "^_+$" }],
    "import/no-extraneous-dependencies": 0,
    "no-confusing-arrow": 0,
    "no-else-return": 0,
    "react/sort-comp": 0,
    "react/jsx-filename-extension": 0,
    "flowtype-errors/show-errors": 2,
    "no-prototype-builtins": 0,
    "no-duplicate-imports": 0,
    "flowtype/require-valid-file-annotation": [2, "always", {"annotationStyle": "line"}],
    "flowtype/semi": [2, "never"],
    "flowtype/boolean-style": [2, "boolean"],
    "flowtype/no-dupe-keys": 2,
    "flowtype/space-before-type-colon": [2, "never"],
    "flowtype/space-after-type-colon": [2, "always"],
    "flowtype/union-intersection-spacing": [2, "always"],
    "flowtype/object-type-delimiter": 2
  },
  "env": {
    "mocha": true,
    "browser": "true"
  },
  "parserOptions": {
    "ecmaVersion": 7,
    "sourceType": "module",
    "ecmaFeatures": {
      "impliedStrict": true,
      "jsx": true,
      "experimentalObjectRestSpread": true
    }
  }
}