Method getElementById

src/service/ampdoc-impl.js:542–544

* Locates an element with the specified ID within the ampdoc. In the * shadow-doc mode, when multiple documents could be present, this method * localizes search only to the DOM subtree specific to this ampdoc. * * @param {string} id * @return {?Element}

(id)

   * @return {?Element}
   */
  getElementById(id) {
    return this.getRootNode().getElementById(id);
  }

  /**
   * Whether the node is currently contained in the DOM of the root.