Function observer

index.js:560–572

(element, handler)

  });

  var observer = function observer(element, handler) {
    var nodeType = element.nodeType;

    if (nodeType) {
      var node = nodeType === 1 ? element : find(element);
      observe(node);
      node.addEventListener('disconnected', handler, false);
    } else {
      var value = element.valueOf(); // give a chance to facades to return a reasonable value

      if (value !== element) observer(value, handler);
    }
  };

  var augmentor$1 = function augmentor$1(fn) {
    var handler = null;