Programming Tutorials

  You have successfully migrated your legacy   google.maps.Marker   code to the new, performance-optimized   google.maps.marker.AdvancedMarkerElement . Your pins render beautifully, collisions are handled gracefully, and click events trigger as expected. But then you attempt to implement a simple hover state—perhaps a tooltip or a z-index boost on mouseover—and nothing happens. You try the standard  marker.addListener("mouseover", cb) . You try  google.maps.event.addListener . You may even try attaching React synthetic events to a wrapper. They all fail silently or behave inconsistently. This is a widespread issue for senior frontend engineers migrating to the Google Maps JavaScript API v3.53+. This post dissects why the event propagation model changed and provides a robust, copy-pasteable React solution to fix it. The Root Cause: The "DOM Element" Paradigm Shift To understand why your event listeners are failing, we must look at the architectural differenc...