.eslintrc

{
    "extends": "eslint:recommended",
    "rules":{
        // Best practices
        "curly": 2, // never omit curly braces
        // Style
        "eol-last": 2, // enforce newlines at the end of files
        "indent": 2, // specify 4 spaces width for intenting your code
        "no-lonely-if": 2, // disallow if as the only statement in an else block
        "no-spaced-func": 2, // disallow space between function identifier and application. no: fn (), yes: fn()
        "quotes": [2, "single"], // allow only double quotes
        "semi": [2, "always"], // semicolons must be used any place where they are valid
        "space-before-blocks": 2,    // require a space before blocks
        "arrow-spacing": 2, // require space before/after arrow function's arrow
        "no-var": 2, // require let or const instead of var
        "react/jsx-curly-spacing": [2, "always"],
        "react/jsx-no-duplicate-props": 2,
        "react/jsx-no-undef": 2,
        "jsx-quotes": 2,
        "react/jsx-uses-react": 2,
        "react/no-danger": 2,
        "react/no-unknown-property": 2,
        "react/self-closing-comp": 2,
        "react/sort-comp": 2
    },
    "env": {
        "browser": true,
        "node": true,
        "es6": true
    },
    "parser": "babel-eslint",
    "plugins": ["react"]
}