Method appendHtml

frontend/src/ts/utils/dom.ts:1118–1123

* Append HTML string to all elements in the array

(htmlString: string)

   * Append HTML string to all elements in the array
   */
  appendHtml(htmlString: string): this {
    for (const item of this) {
      item.appendHtml(htmlString);
    }
    return this;
  }

  override indexOf(element: ElementWithUtils<T>): number {
    return this.native.indexOf(element.native);