Function downloadFile

downloadFile(
    requestUrl: string,
    filename?: string,
    onError?: (e: Event, status: number, responseText?: string) => void,
    onLoaded?: () => void,
): void
Downloads a file from the given URL and saves it with the specified filename.
Parameters
- requestUrl: string
  The URL to request the file from.
- Optionalfilename: string
  The filename to save the file as. If not provided, it tries to use the filename from the content-disposition header or defaults to "missing_filename".
- OptionalonError: (e: Event, status: number, responseText?: string) => void
  Callback function to handle errors during the request. The third parameter contains the response text if available.
- OptionalonLoaded: () => void
  Callback function to handle successful download completion.
Returns void
Example
```
downloadFile("https://example.com/file.pdf", "downloaded_file.pdf");
```
Example
```
downloadFile("https://example.com/file.pdf", undefined, (e, status) => {
  console.error(`Failed to download file: ${status}`, e);
});
```
- Defined in utils/file/index.ts:17