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lang: en
title: 'API docs: socketio.socketio.namespace'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/extensions/socketio
permalink: /doc/en/lb4/apidocs.socketio.socketio.namespace.html
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[Home](./index.md) > [@loopback/socketio](./socketio.md) > [socketio](./socketio.socketio.md) > [namespace](./socketio.socketio.namespace.md)
## socketio.namespace() function
<b>Signature:</b>
```typescript
function namespace(name: string): (target: Object, member: string | undefined, methodDescriptorOrParameterIndex?: number | TypedPropertyDescriptor<any> | undefined) => void;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| name | string | |
<b>Returns:</b>
(target: Object, member: string \| undefined, methodDescriptorOrParameterIndex?: number \| TypedPropertyDescriptor<any> \| undefined) => void