---
jsApi: true
title: "[F] isJsonSchemaDeclaration"

---
```ts
isJsonSchemaDeclaration(program, target): boolean
```

## Parameters

| Parameter | Type |
| :------ | :------ |
| `program` | `Program` |
| `target` | [`JsonSchemaDeclaration`](Type.JsonSchemaDeclaration.md) |

## Returns

`boolean`
