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One thing that I've been curious how to do in Svelte is include a components' HTML children in a place using svelte, like this:

<Popup>
  <h1>Hello World</h1>
</Popup>

I've done some research, and I saw that rich harris was doing this with his svelte cubed framework.

about 4 years ago · Juan Pablo Isaza

Answer question

Accepted Answer · 2022-08-31T05:09:28.447Z

You might want to learn more about the slot.

App.svelte

<script>
  import Popup from './lib/Popup.svelte';
</script>

<Popup>
  <h1>Hello World</h1>
</Popup>

Popup.svelte

<div>
  <slot>
    This is fallback content when no content is provided
  </slot>
</div>