Method attrsByKey

validator/js/engine/htmlparser-interface.js:277–285

* Returns an object mapping attribute name to attribute value. This is * populated lazily, as it's not used for most tags. * @return {Object } *

()

   * @return {Object<string, string>}
   * */
  attrsByKey() {
    if (this.attrsByKey_ === null) {
      this.attrsByKey_ = Object.create(null);
      for (const attr of this.attrs()) {
        this.attrsByKey_[attr.name] = attr.value;
      }
    }
    return /** @type{Object<string, string>} */ (this.attrsByKey_);
  }
  /**
   * Returns a duplicate attribute name if the tag contains two attributes
   * named the same, but with different attribute values. Same attribute name