how to set only one drawing feature at a time

[pranami007]

when user drawn polygon and then try to draw circle at that time polygon should have to remove

[Falke-Design]

You can listen on the pm:drawstart event on the map.

var layersOnMap = L.featureGroup();
map.on('pm:drawstart',(e)=>{
   // delete all drawn layers.
   layersOnMap.eachLayer((layer)=>{
      layer.removeFrom(mymap)
   })
   layersOnMap.clearLayers(); // clear the group
});

map.on('pm:create', (e)=>{
    e.layer.addTo(layersOnMap); // add the new drawn layer to a group, so it can be cleared, if another feature is drawn
});