var filename = filex.selectedFiles()[0].get('name'),
is_archive = _.some(['.zip', '.tar.gz', '.tgz', '.tar.bz2', 'tbz'], function(ext) {
return filename.endsWith(ext);
var filename = filex.selectedFiles()[0].get('name'),
is_archive = _.some(['.zip', '.tar.gz', '.tgz', '.tar.bz2', 'tbz'], function(ext) {
return filename.endsWith(ext);