<!-- Do not edit this file. It is automatically generated by API Documenter. -->
[`Plugin`](Plugin) › [`registerExtensions`](Plugin/registerExtensions)
## Plugin.registerExtensions() method
**Signature:**
```typescript
registerExtensions(extensions: string[], viewType: string): void;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| <code>extensions</code> | <code>string[]</code> | |
| <code>viewType</code> | <code>string</code> | |
**Returns:**
`void`