FormData created from an existing form seems empty when I log it [duplicate]

Answer 1

As per MDN documentation on FormData

An object implementing FormData can directly be used in a for...of structure, instead of entries(): for (var p of myFormData) is equivalent to for (var p of myFormData.entries()).

Iterating over FormData.entries() didn't worked for me.

Here is what I do to check if formData is empty or not:

var isFormDataEmpty= true;
for (var p of formData) {
   isFormDataEmpty= false;
   break;
}

As iterating over formData gives you the uploaded file, you can use it for getting the file name, file type validation, etc.