import PropTypes from 'prop-types'; class Greeting extends React.Component { render() { return ( <h1>Hello, {this.props.name}</h1> ); } } Greeting.propTypes = { name: PropTypes.string };
MyComponent.propTypes = { items: PropTypes.arrayOf( PropTypes.shape({ code: PropTypes.string, id: PropTypes.number, }) ), };
size: PropTypes.oneOfType([ PropTypes.string, PropTypes.number ]),