.eslintrc.json

{
    "env": {
        "browser": true,
        "es6": true
    },
    "extends": [
        "plugin:react/recommended"
    ],
    "parserOptions": {
        "ecmaFeatures": {
            "experimentalObjectRestSpread": true,
            "jsx": true
        },
        "sourceType": "module"
    },
    "parser": "babel-eslint",
    "plugins": [
        "react"
    ],
    "rules": {
        "indent": [
            "error",
            "tab"
        ],
        "linebreak-style": [
            "error",
            "unix"
        ],
        "quotes": [
            "error",
            "single"
        ],
        "semi": [
            "error",
            "never"
        ],
        "no-mixed-spaces-and-tabs": "off",
        "no-console": "off",
        "react/no-unescaped-entities": 0,
        "react/jsx-no-target-blank": 0,
        "no-restricted-syntax": [
            "error",
            {
                "selector": "CallExpression[callee.object.name='console'][callee.property.name!=/^(log|warn|error|info|trace)$/]",
                "message": "Unexpected property on console object was called"
            }
        ]
    }
}