Unescape HTML entities in Javascript?

Question

I have some Javascript code that communicates with an XML-RPC backend. The XML-RPC returns strings of the form:

Answer 1

function decodeHTMLContent(htmlText) {
  var txt = document.createElement("span");
  txt.innerHTML = htmlText;
  return txt.innerText;
}

var result = decodeHTMLContent('One & two & three');
console.log(result);