consul/ui-v2/app/services/dom-buffer.js

import Service from '@ember/service';
import Evented from '@ember/object/evented';
const buffer = {};
export default Service.extend(Evented, {
  // TODO: Consider renaming this and/or
  // `delete`ing the buffer (but not the DOM element)
  // flush should flush, but maybe being able to re-flush
  // after you've flushed could be handy
  flush: function(name) {
    return buffer[name];
  },
  add: function(name, dom) {
    this.trigger('add', dom);
    if (typeof buffer[name] === 'undefined') {
      buffer[name] = [];
    }
    buffer[name].push(dom);
    return dom;
  },
  remove: function(name) {
    if (typeof buffer[name] !== 'undefined') {
      buffer[name].forEach(function(item) {
        item.remove();
      });
      delete buffer[name];
    }
  },
});