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fix: falsy attachments types #15939

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Merged
merged 1 commit into from
May 17, 2025
+7 −2
Merged

fix: falsy attachments types #15939

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5 changes: 5 additions & 0 deletions .changeset/chilled-otters-hear.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
'svelte': patch
---

fix: falsy attachments types
4 changes: 2 additions & 2 deletions packages/svelte/elements.d.ts
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Expand Up @@ -863,8 +863,8 @@ export interface HTMLAttributes<T extends EventTarget> extends AriaAttributes, D
// allow any data- attribute
[key: `data-${string}`]: any;

// allow any attachment
[key: symbol]: Attachment<T>;
// allow any attachment and falsy values (by using false we prevent the usage of booleans values by themselves)
[key: symbol]: Attachment<T> | false | undefined | null;
}

export type HTMLAttributeAnchorTarget = '_self' | '_blank' | '_parent' | '_top' | (string & {});
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