Method append

packages/core/src/dom_components/model/Component.ts:1131–1147

* Add new component children * @param {Component|String} components Component to add * @param {Object} [opts={}] Options for the append action * @return {Array} Array of appended components * @example * someComponent.get('components').length // -> 0 * const videoComponent = someCo

(components: ComponentAdd, opts: AddOptions = {})

   * someComponent.append(otherComponent, { at: 0 });
   */
  append<T extends Component = Component>(components: ComponentAdd, opts: AddOptions = {}): T[] {
    const compArr = isArray(components) ? [...components] : [components];
    const toAppend = compArr.map((comp) => {
      if (isString(comp)) {
        return comp;
      } else {
        // I have to remove components from the old container before adding them to a new one
        comp.collection && (comp as Component).collection.remove(comp, { temporary: true } as any);
        return comp;
      }
    });
    const result = this.components().add(toAppend, {
      action: ActionLabelComponents.add,
      ...opts,
    });
    return result as T[];
  }

  /**
   * Set new collection if `components` are provided, otherwise the