How to show a popup on mouse-over, not on click?

Question

Is it possible in Leaflet that popup opens on mouse-over, not on click?

This is working for just one marker at a time, but I need it for a bigger number of markers:

marker.on('mouseover', function(e){
    marker.openPopup();
});

Answer 1

This is not a Leaflet-specific problem, but rather a question of Javascript.

Store your markers in a collection, and then bind openPopup to a 'mouseover' event for all of them.

For example, with an array:

var markers = getAllMarkers(); // up to you to implement, say it returns an Array<L.Marker>

for (var i = 0; i < markers.length; i++) {
    var currentMarker = markers[i];
    currentMarker.on('mouseover', currentMarker.openPopup.bind(currentMarker));
}