Leaflet.org

Reacting to events with JavaScript is the foundation of a dynamic experiences on the web. Whether it’s a click event or another typical action, responding to that action is important. We started with assigning events to specific elements, then moved to event delegation for efficiency, but did you know you can identify elements by position on the page? Let’s look at document.elementFromPoint and document.elementsFromPoint. The document.elementFromPoint method accepts x and y parameters to identify the top-most element at a point: const element = document.elementFromPoint(100, 100); // If you want to know the entire element stack, you can use document.elementsFromPoint: const... more →