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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_marker_animations_iteration]
// If you're adding a number of markers, you may want to drop them on the map
// consecutively rather than all at once. This example shows how to use
// window.setTimeout() to space your markers' animation.
const neighborhoods = [
{ lat: 52.511, lng: 13.447 },
{ lat: 52.549, lng: 13.422 },
{ lat: 52.497, lng: 13.396 },
{ lat: 52.517, lng: 13.394 },
];
let markers = [];
let map;
function initMap() {
map = new google.maps.Map(document.getElementById("map"), {
zoom: 12,
center: { lat: 52.52, lng: 13.41 },
});
document.getElementById("drop").addEventListener("click", drop);
}
function drop() {
clearMarkers();
for (let i = 0; i < neighborhoods.length; i++) {
addMarkerWithTimeout(neighborhoods[i], i * 200);
}
}
function addMarkerWithTimeout(position, timeout) {
window.setTimeout(() => {
markers.push(
new google.maps.Marker({
position: position,
map,
animation: google.maps.Animation.DROP,
}),
);
}, timeout);
}
function clearMarkers() {
for (let i = 0; i < markers.length; i++) {
markers[i].setMap(null);
}
markers = [];
}
window.initMap = initMap;
// [END maps_marker_animations_iteration]