---
id: fast-foundation.elementdisambiguation
title: ElementDisambiguation variable
hide_title: true
---
<!-- Do not edit this file. It is automatically generated by API Documenter. -->

[@microsoft/fast-foundation](./fast-foundation.md) &gt; [ElementDisambiguation](./fast-foundation.elementdisambiguation.md)

## ElementDisambiguation variable

Indicates what to do with an ambiguous (duplicate) element.

<b>Signature:</b>

```typescript
ElementDisambiguation: Readonly<{
    definitionCallbackOnly: null;
    ignoreDuplicate: symbol;
}>
```