Various plugins to make life easier with Leaflet.
The graticule plugin displays a grid of latitude/longitude lines projected on the map. Extends GeoJson.
L.graticule().addTo(map);
L.graticule({
onEachFeature: function(feature, layer) {
layer.bindPopup('<strong>' + feature.properties.name + '</strong>');
}
}).addTo(map);
L.graticule({
surface: true,
style: {
fillColor: '#99b3cc',
fillOpacity: 1,
weight: 0
}
}).addTo(map);