content: import React from 'react'
  
  export default class Welcome extends React.Component {
    state = { name: null }
  
    componentDidMount () {
      const { name } = this.props
      this.setState({ name })
    }
  
    render () {
      const { name } = this.state
      if (!name) return null
  
      return <p>Welcome, {name}</p>
    }
  }
  