JSFiddle - React, Tailwind, and code Playground

HTML

<a id="main" class="margin-right-5 no-underline" href="#" data-qid="0" data-name="Post\u0026#39;\u0026#39; \u0026#39;!@#$%^\u0026amp;*()_+{}|:\u0026quot;\u0026lt;\u0026gt;?,./;\u0026#39;[]\\212\u0026quot;\u0026quot;3\u0026quot;4567890-=\u0026#39;" data-caption="" data-description="Animals are generally considered to have evolved from a flagellated eukaryote.[39] \u0026#39;!@#$%^\u0026amp;*()_+{}|:\u0026quot;\u0026lt;\u0026gt;?,./;\u0026#39;[]\\21234567890-=\u0026#39;Their closest known living relatives are the ch...">
Alert Decoded HTML</a>

JavaScript

$('#main').click(function (e) {
    e.preventDefault()
    //alert("AA");
    var name = $('#main').data('name');
    var x = $("<p>").html(name).text();
    x = $("<p>").html(unescape(x.replace(/\u([\d\w]{4})/gi, function (match, grp) {
        return String.fromCharCode(parseInt(grp, 16));
    }))).text().replace(/\\/g, "");
    alert(x);
});