效果预览
技术要点
当父组件给子组件传递的 JSX 超过一个标签时,子组件接收到的 children 是一个数组,通过解析数组中各 JSX 的属性 slot ,即可实现具名插槽的分发!
代码实现
Father.jsx
js
import Child from "./Child";
export default function Father() {
return (
<div>
<Child>
<h2 slot="title">标题</h2>
<p slot="content">内容</p>
</Child>
</div>
);
}
Child.jsx
js
function Child({ children }) {
let slotDic = {};
if (Array.isArray(children)) {
children.forEach((child) => {
let slotName = child.props.slot;
if (slotName) {
slotDic[slotName] = child;
}
});
}
return (
<div>
<h1>子组件</h1>
{slotDic.title}
{slotDic.content}
</div>
);
}
export default Child;