Geocoding TimeMap - draw an isochrone

// Creates a function that responds to the selected suggestion.
function moveMarker(map, marker) {
  return function (suggestion) {
    // The Geocoding API returns coordinates in a [<lng>, <lat>] format. We transform it into Leaflet's LatLng.
    var latLng = L.latLng(suggestion.data.reverse());
    // Change the coordintates for the marker.
    marker.setLatLng(latLng);
    // Pan to the map view the new coordinates.
    map.flyTo(latLng);
    // Send a Time Map request and draw the isochrone. 
    sendTimeMapRequest(suggestion.data, map)
  }
}