voluptasmollitia/docs-exp/app.registerversion.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/app](./app.md) &gt; [registerVersion](./app.registerversion.md)

## registerVersion() function

Registers a library's name and version for platform logging purposes.

<b>Signature:</b>

```typescript
export declare function registerVersion(libraryKeyOrName: string, version: string, variant?: string): void;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  libraryKeyOrName | string |  |
|  version | string | Current version of that library. |
|  variant | string | Bundle variant, e.g., node, rn, etc. |

<b>Returns:</b>

void