snippets_for_lab.js

// 2.2
import { AppRegistry } from 'react-native'
import App from './App.react'
AppRegistry.registerComponent('YOUR_PROJECT_NAME', () => App)

// 4.2
propTypes = {
  post: PropTypes.shape({
      imageURL: PropTypes.string.isRequired,
      caption: PropTypes.string.isRequired,
  })
}

// 4.3
const rows = json.response.posts.map(post => ({
  caption: post.caption,
  imageURL: post.photos[0].original_size.url,
}))