.eslintrc.js

module.exports = {
    'env': {
        'browser': true,
        'node': true,
        'es6': true
    },
    'parser': 'babel-eslint',
    'parserOptions': {
        'ecmaVersion': 6,
        'sourceType': 'module',
        'ecmaFeatures': {
            'impliedStrict': true,
            'jsx': true
        }
    },
    'rules': {
        'block-scoped-var': 2,
        'brace-style': 2,
        'camelcase': [2, { 'properties': 'never' }],
        'comma-dangle': [2, 'never'],
        'comma-style': 2,
        'complexity': 0,
        'consistent-this': [2, 'self'],
        'curly': [2, 'all'],
        'dot-notation': [2, { 'allowKeywords': true }],
        'eqeqeq': 2,
        'global-strict': 0,
        'guard-for-in': 2,
        'indent': [2, 4, { 'SwitchCase': 1 }],
        'jsx-quotes': 2,
        'key-spacing': [2, { 'beforeColon': false, 'afterColon': true }],
        'keyword-spacing': 2,
        'max-depth': 0,
        'max-len': [2, 120, 4, { 'ignoreComments': true, 'ignoreUrls': true }],
        'max-params': 0,
        'max-statements': 0,
        'new-cap': [2, { 'newIsCap': true, 'capIsNew': false }],
        'no-bitwise': 2,
        'no-caller': 2,
        'no-cond-assign': 0,
        'no-debugger': 0,
        'no-empty': 0,
        'no-eval': 0,
        'no-iterator': 0,
        'no-loop-func': 0,
        'no-mixed-spaces-and-tabs': 2,
        'no-multi-str': 0,
        'no-new': 0,
        'no-plusplus': 0,
        'no-proto': 0,
        'no-script-url': 0,
        'no-shadow': 0,
        'no-trailing-spaces': 0,
        'no-undef': 2,
        'no-unused-vars': [2, { 'vars': 'all', 'args': 'none' }],
        'no-use-before-define': [2, 'nofunc'],
        'padded-blocks': [2, 'never'],
        'quotes': [2, 'single'],
        'react/jsx-closing-bracket-location': 2,
        'react/jsx-indent': 2,
        'react/jsx-indent-props': 2,
        'react/jsx-key': 2,
        'react/jsx-uses-react': 2,
        'react/jsx-uses-vars': 2,
        'react/no-danger': 2,
        'react/no-deprecated': 2,
        'react/no-direct-mutation-state': 2,
        'react/sort-comp': [2, {
            order: [
                'type-annotations',
                'static-methods',
                'lifecycle',
                'everything-else',
                'render'
            ]
        }],
        'react/wrap-multilines': 2,
        'semi': [2, 'always'],
        'space-before-blocks': 2,
        'space-before-function-paren': 2,
        'spaced-comment': [2, 'always', { 'markers': ['global'] }],
        'strict': 0,
        'valid-jsdoc': 2,
        'wrap-iife': [2, 'inside']
    },
    'plugins': ['react', 'babel', 'flowtype']
};