Insert id in data-formid="" from jquery

Question

I need to include on the data-formid="" the id of each event clicked, so that it is different and give u Ubmit with ajax in each form.

I’ve managed to pass the id that way:

Html

<div id="eventID_faturar"></div>

Jquery

This line is where I get the id - $('#eventID_invoice'). text(Event.id);

eventClick:  function(event, jsEvent, view) {
                endtime = $.fullCalendar.moment(event.end).format('h:mm');
                starttime = $.fullCalendar.moment(event.start).format('dddd, D MMMM YYYY, h:mm');
                var mywhen = starttime + ' - ' + endtime;
                var mywhen2 = event.id;
                $('#modalTitle_excluir').html(event.title);
                $('#modalWhen_excluir').text(mywhen);
                $('#eventID_faturar').text(event.id);
                $('#calendarModal_excluir').modal();
            }

Upshot

<div id="eventID_faturar">969</div>

But I would need to include this id in the data-formid="", how would I do that

<form class="faturar_ajax" data-formid="id_aqui" method="post" enctype="multipart/form-data">   
<input type="hidden" id="eventID_faturar" name="eventID_faturar"/>
</form>

Answer 1

$('#eventID_faturar').data('formid', event.id);

More details here

EDIT: AP wants to put the value inside the tag form. Do as follows:

$('form:eq(0)').data('formid', <valor a passar>);

Where form:eq(0) designates the first. form on the page and <valor a passar>, the value of the attribute data-formid.

EDIT 2: AP was checking if the attribute appeared in the DOM and for that we changed jQuery.data('formid', <valor>) for jQuery.attr('data-formid', <valor>).