The bubbles read-only property of the Event interface indicates whether the event bubbles up through the DOM tree or not.

Note: See Event bubbling and capture for more information on bubbling.


A boolean value, which is true if the event bubbles up through the DOM tree.


function handleInput(e) {
  // Checks whether the event bubbles and ...
  if (!e.bubbles) {
    // ... passes the event along if does not

  // Already bubbling


DOM Standard
# ref-for-dom-event-bubbles③

Browser compatibility

BCD tables only load in the browser

See also

  • stopPropagation() to prevent further propagation of the current event in the capturing and bubbling phases
  • stopImmediatePropagation() to not call any further listeners for the same event at the same level in the DOM
  • preventDefault() to allow propagation to continue but to disallow the browser to perform its default action should no listeners handle the event