Drawing polyline in Leaflet?

This is my coding I used in Leaflet:

    var pointA = new L.LatLng(28.635308, 77.22496);
    var pointB = new L.LatLng(28.984461, 77.70641);
    var pointList = [pointA, pointB];

    var firstpolyline = new L.Polyline(pointList {
    color: 'red',

    weight: 3,
    opacity: 0.5
    smoothFactor: 1

    });

    map.addLayer(firstpolyline);

The map is not showing any result. I just need straight line from one point to another, just visualize it, not geodetic correct. Points (in Leaflet "circles") are showing perfectly on the map.

Answer

Is your code pasted directly? If so,

var pointA = new L.LatLng(28.635308, 77.22496);
var pointB = new L.LatLng(28.984461, 77.70641);
var pointList = [pointA, pointB];

var firstpolyline = new L.polyline(pointList {
color: 'red',
weight: 3,
opacity: 0.5
smoothFactor: 1


});

has missing comma's on lines 5 & 8, and line 12 use firstpolyline.addTo(map). Make it

var pointA = new L.LatLng(28.635308, 77.22496);
var pointB = new L.LatLng(28.984461, 77.70641);
var pointList = [pointA, pointB];

var firstpolyline = new L.Polyline(pointList, {
    color: 'red',

    weight: 3,
    opacity: 0.5,
    smoothFactor: 1
});
firstpolyline.addTo(map);