---
id: fast-foundation.listbox.length
title: Listbox.length property
hide_title: true
---
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[@microsoft/fast-foundation](./fast-foundation.md) &gt; [Listbox](./fast-foundation.listbox.md) &gt; [length](./fast-foundation.listbox.length.md)

## Listbox.length property

The number of options.

<b>Signature:</b>

```typescript
get length(): number;
```