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

---
```ts
isStringType(program, target): target is Scalar
```

## Parameters

| Parameter | Type |
| :------ | :------ |
| `program` | [`Program`](../interfaces/Program.md) \| [`ProjectedProgram`](../interfaces/ProjectedProgram.md) |
| `target` | [`Type`](../type-aliases/Type.md) |

## Returns

`target is Scalar`
