/*I made Map N38.913E139.909 and 15level!*/

var mymap = L.map("mymap").setView([38.913, 139.909], 15);
L.tileLayer('//{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',{
	attribution:
	'&copy; <a href="http://osm.org/copyright">OpenStreetMap</a>contributors'
}).addTo(mymap);

/*I made a line !*/
var pl = [			// Polyline: ????
    [38.892123,139.818884],
    [38.891187,139.819313],
    [38.891780,139.823411]
];
var plProp = {			// polyline?????????
    color: "red",		// ????
    opacity: 0.4,		// ??????
    weight: 9			// ?????
};
var plobj = L.polyline(pl, plProp).addTo(mymap);