JSFiddle - React, Tailwind, and code Playground
HTML
<div class="list">
<ul>List</ul>
</div>
<ul class="hidden"></ul>
CSS
.list { margin: 10px; }
.hidden { display: none; }
JavaScript
var $hidden = $('.hidden'),
html = '';
for(var i=0; i<1000; i++) {
html += "<li name='some-id'>" + i + "</li>";
}
$hidden.append(html);
//jQuery("ul").add(jQuery("li"));