/
index.js
executable file
·36 lines (35 loc) · 1.26 KB
/
index.js
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// [START maps_directions_travel_modes]
function initMap() {
const directionsRenderer = new google.maps.DirectionsRenderer();
const directionsService = new google.maps.DirectionsService();
const map = new google.maps.Map(document.getElementById("map"), {
zoom: 14,
center: { lat: 37.77, lng: -122.447 },
});
directionsRenderer.setMap(map);
calculateAndDisplayRoute(directionsService, directionsRenderer);
document.getElementById("mode").addEventListener("change", () => {
calculateAndDisplayRoute(directionsService, directionsRenderer);
});
}
function calculateAndDisplayRoute(directionsService, directionsRenderer) {
const selectedMode = document.getElementById("mode").value;
directionsService.route(
{
origin: { lat: 37.77, lng: -122.447 },
destination: { lat: 37.768, lng: -122.511 },
// Note that Javascript allows us to access the constant
// using square brackets and a string value as its
// "property."
travelMode: google.maps.TravelMode[selectedMode],
},
(response, status) => {
if (status == "OK") {
directionsRenderer.setDirections(response);
} else {
window.alert("Directions request failed due to " + status);
}
}
);
}
// [END maps_directions_travel_modes]