# $isLexicalMdxExpressionNode

**Kind:** Function

**Source:** [`atloria-monorepo/packages/editor/src/plugins/jsx/LexicalMdxExpressionNode.tsx`](https://github.com/sherkety/atloria/blob/main/atloria-monorepo/packages/editor/src/plugins/jsx/LexicalMdxExpressionNode.tsx#L206)

## Signature

```ts
function $isLexicalMdxExpressionNode(node: LexicalNode | null | undefined): node is LexicalMdxExpressionNode
```

## Parameters

| Name | Type |
|---|---|
| `node` | `LexicalNode | null | undefined` |

**Returns:** `node is LexicalMdxExpressionNode`