How to delegate events in the DOM

• quiz
• easy
• ui
• 7 min
• ui-events
• mark done

In a list of 1000 rows, each row has a Delete button. Where should you attach the click listener for best performance?

In a list of 1000 rows, each row has a Delete button. Where should you attach the click listener for best performance?

• A Attach a listener to each Delete button
• B Attach a listener to the
  or container</span> </label> </li>
  • C Attach a listener to the document object
  • D Attach a listener to the window object
  </ul>
  </form> Which statement about event delegation is FALSE?

  Which statement about event delegation is FALSE?

  • A It works for dynamically added elements because the listener is on a stable ancestor.
  • B It prevents the default browser action for the event.
  • C It relies on the event bubbling phase.
  • D It reduces the number of event listeners needed.
  ## Related - Reading: [Events](../ui/events.html) · [DOM](../ui/dom.html) - Agent Skill: `ui-events`