如何在Svelte/Sapper中动态导入和渲染组件？

Question

我有一个组件 (IconInline.html)，我想在其中根据传递给它的道具 (IconID) 动态导入和渲染组件。

目前我是这样手动操作的：

{{#if IconID === "A"}}
    <A />
{{elseif IconID === "B"}}
    <B />
{{elseif IconID === "C"}}
    <C />
{{elseif IconID === "D"}}
    <D />
{{/if}}

<script>
    import A from "./icons/A.html";
    import B from "./icons/B.html";
    import C from "./icons/C.html";
    import D from "./icons/D.html";

    export default {
        components: { A, B, C, D }
    };
</script>

有没有办法

动态导入给定目录中的所有组件？
渲染与给定道具匹配的特定组件？

Answer 1

无法导入给定目录中的所有组件，但您可以使用 <svelte:component>:

渲染与特定道具匹配的组件

<svelte:component this={cmp} foo="bar" baz="bop">
  <!-- contents go here -->
</svelte:component>

<script>
  import A from "./icons/A.html";
  import B from "./icons/B.html";
  import C from "./icons/C.html";
  import D from "./icons/D.html";

  const components = { A, B, C, D };

  export default {
    computed: {
      cmp: ({ IconID }) => components[IconID]
    }
  };
</script>

如果 IconID 是 "A"，那将等同于

<A foo="bar" baz="bop">
  <!-- contents go here -->
</A>

Docs here.

如何在Svelte/Sapper中动态导入和渲染组件？

How to import and render components dynamically in Svelte/Sapper?

svelte