FileInfo

Contains information which is related to the selected file.

Name	Type	Default	Description
extension?	string		The file extension including the leading dot—for example, .jpg, .png, or other.
httpSubscription?	Subscription		The observable subscription of the upload request.
name	string		The file name.
rawFile?	File		An in-memory representation of the file.
size?	number		The file size in bytes.
state?	FileState		The current state of the file—Failed, Selected, Uploaded, or Uploading. Initial is a special value for FileState. It is automatically applied to initial files without you having to explicitly set their state.
uid?	string		The unique identifier of the file or the batch of files.
validationErrors?	string[]		A list containing the validation errors (if any).