All challenges
Multiple ChoiceBeginner 30s

addEventListener

Choose the best answer for: event handling
Options
  1. 1addEventListener requires jQuery
  2. 2addEventListener attaches a callback for an event type
  3. 3addEventListener overwrites existing handlers
  4. 4addEventListener only works once

Think you can answer under pressure?

Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.

Play this in a 3-minute battle