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feat: Migrates the advanced marker zoom demo; tweaks generation script. (#688)
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‎samples/advanced-markers-zoom/README.md‎

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# Google Maps JavaScript Sample
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This sample is generated from @googlemaps/js-samples located at
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https://github.com/googlemaps-samples/js-api-samples.
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## Setup
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### Before starting run:
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`npm i`
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### Run an example on a local web server
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`cd samples/advanced-markers-zoom`
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`npm start`
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### Build an individual example
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`cd samples/advanced-markers-zoom`
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`npm run build`
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From 'samples':
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`npm run build --workspace=advanced-markers-zoom/`
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### Build all of the examples.
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From 'samples':
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`npm run build-all`
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### Run lint to check for problems
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`cd samples/advanced-markers-zoom`
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`npx eslint index.ts`
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## Feedback
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For feedback related to this sample, please open a new issue on
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[GitHub](https://github.com/googlemaps-samples/js-api-samples/issues).

‎samples/advanced-markers-zoom/index.html‎

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<!doctype html>
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<!--
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@license
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Copyright 2019 Google LLC. All Rights Reserved.
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SPDX-License-Identifier: Apache-2.0
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-->
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<!-- [START maps_advanced_markers_zoom] -->
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<html>
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<head>
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<title>Advanced Marker Zoom Visibility</title>
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<link rel="stylesheet" type="text/css" href="./style.css" />
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<script type="module" src="./index.js"></script>
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</head>
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<body>
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<div id="map"></div>
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<!-- prettier-ignore -->
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<script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})
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({key: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8", v: "weekly"});</script>
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</body>
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</html>
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<!-- [END maps_advanced_markers_zoom] -->

‎samples/advanced-markers-zoom/index.ts‎

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/**
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* @license
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* Copyright 2019 Google LLC. All Rights Reserved.
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* SPDX-License-Identifier: Apache-2.0
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*/
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// [START maps_advanced_markers_zoom]
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async function initMap() {
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// Request needed libraries.
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const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;
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const { AdvancedMarkerElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary;
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const map = new Map(document.getElementById('map') as HTMLElement, {
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center: {lat: 37.424563902650114, lng: -122.09512859577026},
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zoom: 17,
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mapId: '4504f8b37365c3d0',
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});
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const marker01 = new AdvancedMarkerElement({
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map,
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position: { lat: 37.4239163, lng: -122.094 },
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title: 'This marker is visible at zoom level 15 and higher.'
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});
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const marker02 = new AdvancedMarkerElement({
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map,
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position: { lat: 37.4245, lng: -122.096 },
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title: 'This marker is visible at zoom level 16 and higher.'
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});
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const marker03 = new AdvancedMarkerElement({
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map,
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position: { lat: 37.4249, lng: -122.095 },
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title: 'This marker is visible at zoom level 17 and higher.'
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});
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const marker04 = new AdvancedMarkerElement({
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map,
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position: { lat: 37.425, lng: -122.0955 },
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title: 'This marker is visible at zoom level 18 and higher.'
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});
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// [START maps_advanced_markers_zoom_listener]
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map.addListener('zoom_changed', () => {
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const zoom = map.getZoom();
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if (zoom) {
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// Only show each marker above a certain zoom level.
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marker01.map = zoom > 14 ? map : null;
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marker02.map = zoom > 15 ? map : null;
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marker03.map = zoom > 16 ? map : null;
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marker04.map = zoom > 17 ? map : null;
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}
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});
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// [END maps_advanced_markers_zoom_listener]
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}
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initMap();
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// [END maps_advanced_markers_zoom]

‎samples/advanced-markers-zoom/package.json‎

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{
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"name": "@js-api-samples/advanced-markers-zoom",
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"version": "1.0.0",
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"scripts": {
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"build": "tsc && bash ../jsfiddle.sh advanced-markers-zoom && bash ../app.sh advanced-markers-zoom && bash ../docs.sh advanced-markers-zoom && npm run build:vite --workspace=. && bash ../dist.sh advanced-markers-zoom",
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"test": "tsc && npm run build:vite --workspace=.",
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"start": "tsc && vite build --base './' && vite",
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"build:vite": "vite build --base './'",
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"preview": "vite preview"
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},
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"dependencies": {
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}
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}

‎samples/advanced-markers-zoom/style.css‎

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/**
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* @license
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* Copyright 2019 Google LLC. All Rights Reserved.
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* SPDX-License-Identifier: Apache-2.0
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*/
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/* [START maps_advanced_markers_zoom] */
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/*
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* Always set the map height explicitly to define the size of the div element
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* that contains the map.
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*/
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#map {
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height: 100%;
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}
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/*
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* Optional: Makes the sample page fill the window.
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*/
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html,
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body {
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height: 100%;
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margin: 0;
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padding: 0;
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}
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/* [END maps_advanced_markers_zoom] */

‎samples/advanced-markers-zoom/tsconfig.json‎

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{
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"compilerOptions": {
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"module": "esnext",
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"target": "esnext",
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"strict": true,
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"noImplicitAny": false,
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"lib": [
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"es2015",
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"esnext",
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"es6",
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"dom",
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"dom.iterable"
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],
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"moduleResolution": "Node",
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"jsx": "preserve"
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}
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}

‎samples/new1.sh‎

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# 3. ./new1.sh
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# AUTHOR: Update these values!
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NAME="advanced-markers-zoom" # The name of the folder to create (for example "map-simple").
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REGION_TAG="maps_advanced_markers_zoom" # The region tag to use (for example "maps_map_simple").
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TITLE="Demonstrates a Maps feature." # The title of the example.
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NAME="sample-name" # The name of the folder to create (for example "map-simple").
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REGION_TAG="maps_sample_name" # The region tag to use (for example "maps_map_simple").
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TITLE="Descriptive text for sample." # The title of the example.
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API_LOADER="api_loader_dynamic" # The type of loader to use (api_loader_dynamic or api_loader_default).
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# Path to the source folder for the repo archive; substitute with your own path.

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