attributeChangedCallback()

in x-element.js [187:192]

• 4 lines of code
• 1 McCabe index (conditional complexity)

  attributeChangedCallback(attribute, oldValue, value) {
    const { attributeMap } = XElement.#constructors.get(this.constructor);
    // Authors may extend "observedAttributes". Optionally chain to account for
    // attributes which we don't know about.
    attributeMap.get(attribute)?.sync(this, value, oldValue);
  }