$('#id').html(data) code example

Example 1: jquery get data-id

const dataId = $('#elementId').attr("data-id");

Example 2: javascript get data-id attribute

//get data-id attribute in plain Javascript
var element = document.getElementById('myDivID');
var dataID = element.getAttribute('data-id');

//get data-id using jQuery
var dataID = $('myDivID').data('data-id');