JSFiddle - React, Tailwind, and code Playground

HTML

<div id='results'>


</div>

JavaScript

var $=jQuery;
    var $h=$('<span>');
    function encodeAttr(t) {
        return $h.attr('title',t).prop('outerHTML').match(/title="(.*)"/)[1]
    }

		var myTitleVar = '"My Title\'s Quotation Marks"';
    var encoded = encodeAttr(myTitleVar);
    $('body').html(`<span title="${encoded}"> My content </span>`)