Can't add input attributes for submit button

forms

#1

I am trying to add additional attributes to the submit button. It says that we can add it through jquery but every time I inspect the element, it doesn’t show that it’s working. I tried the example they gave us of:

hbspt.forms.create({
portalId: ‘’,
formId: ‘’,
onFormSubmit: function($form) {
$(‘input[name=“firstname”]’).val(‘Brian’).change();
$(“input[type=submit]”).attr(“data-target”, “#confirmation”).change();
}
});

it does not change the value of the first name. I’m trying to add more attributes but it doesn’t seem to be recognizing any of them no matter where I try to add it.