JSFiddle - React, Tailwind, and code Playground
HTML
<p id="p">{{cart.add(uuidOfMostExpensiveItem, over9000)}}</p>
JavaScript
$(function() {
// Get the text node, this is what will be $interpolated
var node = document.getElementById('p').childNodes[0];
// It looks like the HTML browser has unescaped this string!
console.log(node.nodeValue);
alert(node.nodeValue);
});