---
lang: en
title: 'API docs: repository.stringkeyof'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
permalink: /doc/en/lb4/apidocs.repository.stringkeyof.html
---

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[Home](./index.md) &gt; [@loopback/repository](./repository.md) &gt; [StringKeyOf](./repository.stringkeyof.md)

## StringKeyOf type

<b>Signature:</b>

```typescript
export declare type StringKeyOf<T> = Extract<keyof T, string>;
```