.eslintrc example

.eslintrc

{
  "parser": "babel-eslint",
  "plugins": [
    "react",
    "flowtype"
  ],
  "ecmaFeatures": {
    "jsx": true,
    "modules": true
  },
  "env": {
    "browser": true,
    "jasmine": true,
    "jquery": true,
    "es6": true
  },
  "globals": {
    "require": true,
    "module": true
  },
  "extends": ["eslint:recommended", "plugin:react/recommended"],
  "rules": {
    "brace-style": [
      2,
      "1tbs",
      {
        "allowSingleLine": true
      }
    ],
    "camelcase": 2,
    "curly": 2,
    "eol-last": 2,
    "eqeqeq": 2,
    "flowtype/define-flow-type": 1,
    "flowtype/require-parameter-type": [
      2,
      {
        "excludeArrowFunctions": "expressionsOnly"
      }
    ],
    "flowtype/require-return-type": [
      1,
      "always",
      {
        "annotateUndefined": "never",
        "excludeArrowFunctions": "expressionsOnly"
      }
    ],
    "flowtype/space-after-type-colon": [
      1,
      "always"
    ],
    "flowtype/space-before-type-colon": [
      1,
      "never"
    ],
    "flowtype/type-id-match": [
      0,
      "^([A-Z][a-z0-9]+)+Type$"
    ],
    "flowtype/use-flow-type": 1,
    "flowtype/valid-syntax": 1,
    "func-call-spacing": 2,
    "indent": [
      2,
      4,
      {
        "SwitchCase": 1
      }
    ],
    "key-spacing": [
      2,
      {
        "beforeColon": false,
        "afterColon": true
      }
    ],
    "keyword-spacing": [
      2
    ],
    "no-bitwise": 2,
    "no-caller": 2,
    "no-console": 0,
    "no-mixed-spaces-and-tabs": 2,
    "no-multi-str": 2,
    "no-multiple-empty-lines": [
      2,
      {
        "max": 1
      }
    ],
    "no-trailing-spaces": [
      2,
      {
        "skipBlankLines": true
      }
    ],
    "no-unused-vars": [
      2,
      {
        "vars": "all",
        "args": "after-used",
        "varsIgnorePattern": "[rR]eact"
      }
    ],
    "no-use-before-define": 2,
    "no-with": 2,
    "one-var": [
      2,
      "never"
    ],
    "operator-linebreak": [
      2,
      "after"
    ],
    "quotes": [
      2,
      "single",
      "avoid-escape"
    ],
    "react/display-name": 0,
    "react/jsx-key": 2,
    "react/no-find-dom-node": 0,
    "react/no-unescaped-entities": 2,
    "react/prop-types": 0,
    "semi": [
      2,
      "always"
    ],
    "space-before-blocks": [
      2,
      "always"
    ],
    "space-before-function-paren": [
      2,
      {
        "anonymous": "ignore",
        "named": "never"
      }
    ],
    "space-in-parens": [
      2,
      "never"
    ],
    "space-infix-ops": 2,
    "space-unary-ops": [
      2,
      {
        "nonwords": false
      }
    ],
    "valid-jsdoc": 0,
    "wrap-iife": [
      2,
      "any"
    ]
  },
  "settings": {
    "flowtype": {
      "onlyFilesWithFlowAnnotation": true
    }
  }
}