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index.ts
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index.ts
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/**
* @license
* Copyright 2019 Google LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
// [START maps_directions_simple]
function initMap(): void {
const directionsService = new google.maps.DirectionsService();
const directionsRenderer = new google.maps.DirectionsRenderer();
const map = new google.maps.Map(
document.getElementById("map") as HTMLElement,
{
zoom: 7,
center: { lat: 41.85, lng: -87.65 },
}
);
directionsRenderer.setMap(map);
const onChangeHandler = function () {
calculateAndDisplayRoute(directionsService, directionsRenderer);
};
(document.getElementById("start") as HTMLElement).addEventListener(
"change",
onChangeHandler
);
(document.getElementById("end") as HTMLElement).addEventListener(
"change",
onChangeHandler
);
}
function calculateAndDisplayRoute(
directionsService: google.maps.DirectionsService,
directionsRenderer: google.maps.DirectionsRenderer
) {
directionsService
.route({
origin: {
query: (document.getElementById("start") as HTMLInputElement).value,
},
destination: {
query: (document.getElementById("end") as HTMLInputElement).value,
},
travelMode: google.maps.TravelMode.DRIVING,
})
.then((response) => {
directionsRenderer.setDirections(response);
})
.catch((e) => window.alert("Directions request failed due to " + status));
}
declare global {
interface Window {
initMap: () => void;
}
}
window.initMap = initMap;
// [END maps_directions_simple]
export {};