I know that is simple question but I need an advice from experienced people.

I have 3 input type file like:

```
<input type="file" name="1-files" />
<input type="file" name="2-files" />
<input type="file" name="3-files" />

```

I select all inputs (on my page I have also other inputs type file) which name ends with "-files" ( I wrote in Google Chrome console):

```
$("input[type='file'][name*='-files']").length

```

Ok. I select a file using `1-files` input. After that, I run the following code in Google Chrome console:

```
$("input[type='file'][name*='-files']:empty").length

```

I expect to be `2` but appears `3`.

Can you tell me why ?

I want to get all elements of input type file which values are empty. I used in short way the selector `:empty` but it seems not working properly.

Of course, I could use 

```
var empty_count = 0;
$.each($("input[type='file'][name*='-files']"), function(k, v){
  if($(this).val() === '')
     empty_count++;
});

```

But I want the shortest way to do this without `$.each`.

Thank you