Question

I have the following HTML:

<input id="upload1" type="file" /><br/>
<input id="upload2" type="file" /><br/>
<input id="upload3" type="file" /><br/>
<input id="upload4" type="file" /><br/>
<input id="upload5" type="file" /><br/>
<span id="label" style="color:red; display:none">
Wrong filetype!
</span>

And the following jQuery:

$('input:file').change(function(){
    var ext = $(this).val().split('.').pop().toLowerCase();
    $('#label').toggle(ext != 'pdf');
});

What I want to do, is only toggle the #label if all 5 of the input:file elements pass the validation (pdf extension only). Or no file selected.

At the moment, if i select a .jpg first, the #label displays, then if i select a .pdf the #label disappears. This is incorrect as there is still a .jpg selected in one of the five input:file elements.

EDIT: Fiddle here

Answer 1

You would need to change it to:

$('input:file').change(function(){
    var
        all_ok = true,
        inputs_set = $('input:file');

    for (var e in inputs_set) {
        if (e.val().split('.').pop().toLowerCase() != 'pdf') {
            all_ok = false;
        }
    }

    $('#label').toggle(!all_ok);
});