example.rule.1.jsx

// плохо
function SFC({ foo, bar, children }) {
  return <div>{foo}{bar}{children}</div>;
}

SFC.propTypes = {
  foo: PropTypes.number.isRequired,
  bar: PropTypes.string,
  children: PropTypes.node,
};

// хорошо
function SFC({ foo, bar, children }) {
  return <div>{foo}{bar}{children}</div>;
}

SFC.propTypes = {
  foo: PropTypes.number.isRequired,
  bar: PropTypes.string,
  children: PropTypes.node,
};

SFC.defaultProps = {
  bar: '',
  children: null,
};