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