js dataset object
by slawe
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.4/js/bootstrap-select.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.4/css/bootstrap-select.min.css">
<article
id="electric-cars"
data-columns="3"
data-index-number="12314"
data-parent="cars">
</article>
CSS
.input-group > .input-group-btn:last-child > .selectpicker {
border-top-right-radius: 5px;
border-bottom-right-radius: 5px;
}
.input-group > .input-group-btn:first-child > .selectpicker {
border-top-left-radius: 5px;
border-bottom-left-radius: 5px;
}
JavaScript
let article = document.querySelector('article');
console.log(article.dataset, article.dataset.columns, article.getAttribute('id'));