.eslintrc.js

module.exports = {
    parser: 'babel-eslint',
    extends: 'airbnb',
    env: {
        browser: true,
        jest: true,
    },
    plugins: ['react', 'jsx-a11y', 'import'],
    rules: {
        'arrow-parens': ['error', 'always'],
        'max-len': ['error', 100],
        'no-underscore-dangle': ['error', { allow: ['_id'] }],
        'no-mixed-operators': 'off',
        'prefer-destructuring': [
            'error',
            {
                VariableDeclarator: {
                    array: false,
                    object: true,
                },
                AssignmentExpression: {
                    array: true,
                    object: false,
                },
            },
            {
                enforceForRenamedProperties: false,
            },
        ],
        'import/prefer-default-export': 'off',
        'jsx-a11y/anchor-is-valid': 'off',
        'react/jsx-tag-spacing': [1, {
            'closingSlash': 'never',
            'beforeSelfClosing': 'never',
            'afterOpening': 'never',
            'beforeClosing': 'never'
        }],
        'react/jsx-first-prop-new-line': ['error', 'never'],
        'react/jsx-indent-props': ['error', 'first'],
        'react/react-in-jsx-scope': 'off',
        'react/prefer-stateless-function': [0],
        'react/jsx-one-expression-per-line': [2, { 'allow': 'single-child' }],
        'react/jsx-closing-bracket-location': [1, 'after-props'],
        'react/jsx-filename-extension': [
            'error',
            {
                extensions: ['.js'],
            },
        ],
    },
};