react无状态组件怎么验证props

Question

    import PropTypes from 'prop-types'
    
    const Index = props => {
      return <div>{props.content}</div>
    }

RT，函数组件怎么验证props

Answer 1

Index.propTypes = {
    title: React.PropTypes.string,
};

Answer 2

函数组件prop声明、检查吗