remove route with google map

Question

I got a small app that use the Direction Service feature of Google Map. It is working well, I can change routes, but I have a small problem, where a user could go back to a

Answer 1

It's important - at least it was in my case - that while directionsDisplay can be declared globally the instance has to be created after the map object otherwise it gave a reference error

    var map;
    var directionsDisplay;

    function initMap() { 

        map = new google.maps.Map(...);

        directionsDisplay = new google.maps.DirectionsRenderer(...);

     }

     function yourFunction() {

        // your code

        directionsDisplay.addListener(...);

     }