Function replaceElement

chapter21/docs/d3-graphviz.js:202–212

(element, data)

    return elementNode;
  }
  function replaceElement(element, data) {
    var parent = d3__namespace.select(element.node().parentNode);
    var newElementNode = createElementWithAttributes(data);
    var newElement = parent.insert(function () {
      return newElementNode;
    }, function () {
      return element.node();
    });
    element.remove();
    return newElement;
  }
  function insertElementData(element, datum) {
    element.datum(datum);
    element.data([datum], function (d) {