Question

The thing starts from my previous question:
Using jQuery is it possible to compare two attributes in a selector?
I mean something like:

$('element[atribute1!=attribute2]')

or, in a practical example:

$('input[name!=id]')

In my case, I would need it to get how many input fields haven’t been changed in an html form used to edit something,
I was trying to get this code to work:

if($('input[DefaultValue!=input.value]').lenght==0){...}

What about it?
It should return the number of changed fields (if i get 0 i will stop form submission, show an alert message and go back without updating)

Thank for your help.

Answer 1

No. If you look through jQuery’s documentation, you’ll see there’s no such selector.

Also defaultValue is a property, not an attribute.

You can do this:

var changed = $('input').filter(function() {
    return this.value !== this.defaultValue;
});