var element = document.querySelector('.element');
var dataAttribute = element.getAttribute('data-name');
// replace "data-name" with your data attribute name
console.log(dataAttribute);//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');
const article = document.querySelector('#electric-cars');
article.dataset.columns // "3"
article.dataset.indexNumber // "12314"
article.dataset.parent // "cars"<article
id="voitureelectrique"
data-columns="3"
data-index-number="12314"
data-parent="voitures">
...
</article>
var article = document.getElementById('voitureelectrique');
article.dataset.columns // "3"
article.dataset.indexNumber // "12314"
article.dataset.parent // "voitures"