SOURCE

var mymap = L.map('mapid').setView([51.505, -0.09], 13);

L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
		attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
	}).addTo(mymap);

let zoomControl = L.control.zoom({
  position:'bottomright'
});
zoomControl.addTo(mymap);

 <div id="mapid"></div>

#mapid { height: 280px; }