@fgv/ts-web-extras/docs/ts-web-extras.filesystemcreatewritableoptions_2.keepexistingdata.md

Browser-compatible utilities and FileTree implementations

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[Home](./index.md) &gt; [@fgv/ts-web-extras](./ts-web-extras.md) &gt; [FileSystemCreateWritableOptions\_2](./ts-web-extras.filesystemcreatewritableoptions_2.md) &gt; [keepExistingData](./ts-web-extras.filesystemcreatewritableoptions_2.keepexistingdata.md)

## FileSystemCreateWritableOptions\_2.keepExistingData property

**Signature:**

```typescript
keepExistingData?: boolean;
```