<!-- 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`