Gets a user-selected file content as Base64 string.
$au.uploader('uploaderID').files().get(index).asBase64(value); value = $au.uploader('uploaderID').files().get(index).asBase64();
The file body encoded as Base64 string.
Copying the file content from Java applet may take up to a few seconds per file (especially for large files). So if you are going to iterate all selected files, say, before starting the upload, be careful as it may slow down your script.