.eslintrc.json

{
    "env": {
        "browser": true,
        "commonjs": true,
        "es6": true
    },
    "extends": "eslint:recommended",
    "installedESLint": true,
    "parser": "babel-eslint",
    "parserOptions": {
        "ecmaFeatures": {
            "experimentalObjectRestSpread": true,
            "jsx": true
        },
        "sourceType": "module"
    },
    "plugins": [
        "react"
    ],
    "rules": {
        "strict": 0,
        "linebreak-style": [
            "error", "unix"
        ],
        "quotes": [
            "error",
            "single"
        ],
        "semi": [
            "error",
            "never"
        ],
        "react/jsx-uses-react": "error",
        "react/jsx-uses-vars": "warn",
        "react/no-deprecated": "error",
        "react/no-danger": "warn",
        "react/prefer-es6-class": "warn",
        "react/prop-types": "warn",
        "react/self-closing-comp": "warn",
        "react/jsx-no-duplicate-props": "warn",
        "react/jsx-no-comment-textnodes": "error",
        "react/jsx-no-undef": "error"
    }
}