数组作为子元素很常见
// We use map() to create an array of React Elements for every value in the array.
(<ul>
{["first","second"].map((item) => (
<li>{item}</li>
))}
</ul>)
//That’s equivalent to providing a literal array.
(<ul>
{[
<li>first</li>,<li>second</li>
]}
</ul>)
// This pattern can be combined with destructuring,JSX Spread Attributes,and other components,for some serIoUs terseness.
(<ul>
{arrayOfMessageObjects.map(({ id,...message }) =>
<Message key={id} {...message} />
)}
</ul>)
原文地址:https://www.jb51.cc/react/304348.html
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