Event bubbling

Event bubbling is a type of DOM event propagation where the event first triggers on the innermost target element, and then successively triggers on the ancestors (parents) of the target element in the same nesting hierarchy till it reaches the outermost DOM element or document object (Provided the handler is initialized). It is one way that events are handled in the browser. Events are actions done by the user such as a button click, changing a field etc. Event Handlers are used to execute code when a particular kind of user interface event occurs, such as when a button has been clicked or when a webpage has completed loading. rdf:langString