DropZonejs: Submit form without files

Question

I\'ve successfully integrated dropzone.js inside an existing form. This form posts the attachments and other inputs like checkboxes, etc.

When I submit the form wit

Answer 1

I have successfully used :

submitButton.addEventListener("click", function () {  
  if(wrapperThis.files.length){
        error = `Please select a file`; 
    } else {
        wrapperThis.processQueue(); 
    }
});