You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
svelte/documentation/docs/05-special-elements/05-svelte-element.md

32 lines
1.1 KiB

---
title: <svelte:element>
---
```svelte
<svelte:element this={expression} />
```
The `<svelte:element>` element lets you render an element that is unknown at author time, for example because it comes from a CMS. Any properties and event listeners present will be applied to the element.
The only supported binding is `bind:this`, since Svelte's built-in bindings do not work with generic elements.
If `this` has a nullish value, the element and its children will not be rendered.
If `this` is the name of a [void element](https://developer.mozilla.org/en-US/docs/Glossary/Void_element) (e.g., `br`) and `<svelte:element>` has child elements, a runtime error will be thrown in development mode:
```svelte
<script>
let tag = $state('hr');
</script>
<svelte:element this={tag}>
This text cannot appear inside an hr element
</svelte:element>
```
Svelte tries its best to infer the correct namespace from the element's surroundings, but it's not always possible. You can make it explicit with an `xmlns` attribute:
```svelte
<svelte:element this={tag} xmlns="http://www.w3.org/2000/svg" />
```