extension property
Gets the extension of the picked file in lowercase- e.g: jpg, pdf.
For links, the url is returned
Implementation
String? get extension {
if (content is XFile) {
return path.extension((content as XFile).name).toLowerCase().replaceAll('.', '');
} else if (content is XUri) {
return 'url';
} else if (content is GiphyGif) {
return 'gif';
} else {
return null;
}
}