Function updateValueIfChanged

docs/index.js:4535–4549

(node)

  node._valueTracker || (node._valueTracker = trackValueOnNode(node));
}
function updateValueIfChanged(node) {
  if (!node) return !1;
  var tracker = node._valueTracker;
  if (!tracker) return !0;
  var lastValue = tracker.getValue();
  var value = "";
  node &&
    (value = isCheckable(node)
      ? node.checked
        ? "true"
        : "false"
      : node.value);
  node = value;
  return node !== lastValue ? (tracker.setValue(node), !0) : !1;
}
function getActiveElement(doc) {
  doc = doc || ("undefined" !== typeof document ? document : void 0);
  if ("undefined" === typeof doc) return null;