@loopback/docs/site/apidocs/context.context._mergewithparent.md

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

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[Home](./index.md) &gt; [@loopback/context](./context.md) &gt; [Context](./context.context.md) &gt; [\_mergeWithParent](./context.context._mergewithparent.md)

## Context.\_mergeWithParent() method

<b>Signature:</b>

```typescript
protected _mergeWithParent<ValueType>(childList: Readonly<Binding<ValueType>>[], parentList?: Readonly<Binding<ValueType>>[]): Readonly<Binding<ValueType>>[];
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  childList | Readonly&lt;[Binding](./context.binding.md)<!-- -->&lt;ValueType&gt;&gt;\[\] |  |
|  parentList | Readonly&lt;[Binding](./context.binding.md)<!-- -->&lt;ValueType&gt;&gt;\[\] |  |

<b>Returns:</b>

Readonly&lt;[Binding](./context.binding.md)<!-- -->&lt;ValueType&gt;&gt;\[\]