upload disabled

by Ahmed Salama

HTML

<form action="/upload" method="post"  enctype="multipart/form-data">
         <div class="form-inline">
           <div class="form-group">
             <input type="file" name="fileUploaded">
           </div>
           <button type="submit" class="btn btn-sm btn-primary" disabled>Upload file</button>
         </div>
       </form>

JavaScript

$('input[type=file]').change(function(){
    if($('input[type=file]').val()==''){
    	$('button').attr('disabled',true)
    } 
    else{
      $('button').attr('disabled',false);
    }
})