Conditional “multiple” attribute in <input type=“file”> with AngularJS

Question

I need an upload form field that may or may not allow the user to select more than one file.

I know I can do something like:

Answer 1

Another idea is to use ngShow/ngHide for this. In this demo example input file is show/hide based in param and have a directive for get input value(s) and set in a $scope param.

Demo using ngShow + directive