react proptypes
import PropTypes from 'prop-types'; class Greeting extends React.Component { render() { return ( <h1>Hello, {this.props.name}</h1> ); } } Greeting.propTypes = { name: PropTypes.string };
Source: reactjs.org
prop type for component react js
YourComponent.propTypes = { ContainerProp: PropTypes.elementType, };
Source: stackoverflow.com