Table of Contents

• Topics
  • Event

Topics

Event

• Events are bubbled up the event chain. (sometimes, it's called delegation or propagation)
• Some events have their default actions. (putting letters when keypress within <input>, refreshing the page when click within submit element, etc.)
• Call stopPropagation to prevent the event from bubbling

• Call preventDefault to prevent the default action.

  function handler(event) {
    event.preventDefault();
    event.stopPropagation();
  }