.eslintrc

{
    "parser": "babel-eslint",
    "extends": ["eslint:recommended", "plugin:react/recommended"],
    "plugins": ["react"],
    "parserOptions": {
        "ecmaVersion": 6,
        "sourceType": "module",
        "ecmaFeatures": {
            "impliedStrict": true,
            "jsx": true,
            "experimentalObjectRestSpread": true
        },
        "allowImportExportEverywhere": false,
        "codeFrame": true
    },
    "rules": {
        "semi": "warn",
        "strict": 0,
        "react/jsx-uses-react": "error",
        "react/jsx-uses-vars": "error",
        "no-unused-vars": "warn",
        "react/display-name": "off",
        "react/jsx-key": "warn"
    },
    "settings": {
        "react": {
            "createClass": "createReactClass", // Regex for Component Factory to use,
                                             // default to "createReactClass"
            "pragma": "React",  // Pragma to use, default to "React"
            "version": "detect", // React version. "detect" automatically picks the version you have installed.
                               // You can also use `16.0`, `16.3`, etc, if you want to override the detected value.
                               // default to latest and warns if missing
                               // It will default to "detect" in the future
            "flowVersion": "0.53" // Flow version
        },
        "propWrapperFunctions": [
            // The names of any function used to wrap propTypes, e.g. `forbidExtraProps`. If this isn't set, any propTypes wrapped in a function will be skipped.
            "forbidExtraProps",
            {"property": "freeze", "object": "Object"},
            {"property": "myFavoriteWrapper"}
        ],
        "linkComponents": [
          // Components used as alternatives to <a> for linking, eg. <Link to={ url } />
          "Hyperlink",
          {"name": "Link", "linkAttribute": "to"}
        ]
    },
    "env": {
        "browser": true,
        "node": true
    }
}