react-bits:数组作为子元素

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react-bits
原文

数组作为子元素很常见

  1. // We use map() to create an array of React Elements for every value in the array.
  2. (<ul>
  3. {["first","second"].map((item) => (
  4. <li>{item}</li>
  5. ))}
  6. </ul>)
  7. //That’s equivalent to providing a literal array.
  8. (<ul>
  9. {[
  10. <li>first</li>,<li>second</li>
  11. ]}
  12. </ul>)
  13. // This pattern can be combined with destructuring,JSX Spread Attributes,and other components,for some serIoUs terseness.
  14. (<ul>
  15. {arrayOfMessageObjects.map(({ id,...message }) =>
  16. <Message key={id} {...message} />
  17. )}
  18. </ul>)

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