var adjacencyOperators, _fn;
adjacencyOperators = {
  append: 'beforeEnd',
  prepend: 'afterBegin',
  before: 'beforeBegin',
  after: 'afterEnd'
};
_fn = function(key) {
  return $.fn[key] = function(html) {
    return this.each(function(element) {
      return element['insertAdjacent' + (html instanceof Element ? 'Element' : 'HTML')](operator, html);
    });
  };
};
for (key in adjacencyOperators) {
  _fn(key);
}