@loopback/docs/site/apidocs/repository.type.serialize.md

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---
lang: en
title: 'API docs: repository.type.serialize'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/packages/repository
permalink: /doc/en/lb4/apidocs.repository.type.serialize.html
---

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[Home](./index.md) &gt; [@loopback/repository](./repository.md) &gt; [Type](./repository.type.md) &gt; [serialize](./repository.type.serialize.md)

## Type.serialize() method

Serialize a value into json

<b>Signature:</b>

```typescript
serialize(value: T | null | undefined, options?: Options): any;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  value | T \| null \| undefined | The value of this type |
|  options | [Options](./repository.options.md) | Options for serialization |

<b>Returns:</b>

any