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Add a Map with Events using HTML

  • This example demonstrates how to add event handling togmp-advanced-marker elements using the Google Maps JavaScript API.

  • Clicking a marker on the map triggers a 'gmp-click' event, opening anInfoWindow displaying the marker's title.

  • The provided code snippets showcase the implementation in both TypeScript and JavaScript, along with HTML and CSS for styling and structure.

  • The sample utilizes Google Maps Web Components for creating interactive map elements.

  • You can interact with the live sample via JSFiddle or Google Cloud Shell, and clone the code for local execution using Git and Node.js.

This example demonstrates adding event handling to somegmp-advanced-markerelements, to show anInfoWindow when a marker is clicked.

Read thedocumentation.

TypeScript

// This example adds a map using web components.asyncfunctioninitMap():Promise<void>{const{Map}=awaitgoogle.maps.importLibrary("maps")asgoogle.maps.MapsLibrary;const{AdvancedMarkerElement}=awaitgoogle.maps.importLibrary("marker")asgoogle.maps.MarkerLibrary;console.log('Maps JavaScript API loaded.');constadvancedMarkers=document.querySelectorAll("#marker-click-event-example gmp-advanced-marker");for(constadvancedMarkerofadvancedMarkers){customElements.whenDefined(advancedMarker.localName).then(async()=>{advancedMarker.addEventListener('gmp-click',async()=>{constinfoWindow=newgoogle.maps.InfoWindow({//@ts-ignorecontent:advancedMarker.title,});infoWindow.open({//@ts-ignoreanchor:advancedMarker});});});}}initMap();
Note: Read theguide on using TypeScript and Google Maps.

JavaScript

// This example adds a map using web components.asyncfunctioninitMap(){const{Map}=awaitgoogle.maps.importLibrary("maps");const{AdvancedMarkerElement}=awaitgoogle.maps.importLibrary("marker");console.log("Maps JavaScript API loaded.");constadvancedMarkers=document.querySelectorAll("#marker-click-event-example gmp-advanced-marker",);for(constadvancedMarkerofadvancedMarkers){customElements.whenDefined(advancedMarker.localName).then(async()=>{advancedMarker.addEventListener("gmp-click",async()=>{constinfoWindow=newgoogle.maps.InfoWindow({//@ts-ignorecontent:advancedMarker.title,});infoWindow.open({//@ts-ignoreanchor:advancedMarker,});});});}}initMap();
Note: The JavaScript is compiled from the TypeScript snippet.

CSS

/* * Always set the map height explicitly to define the size of the div element * that contains the map. */#map{height:100%;}/* * Optional: Makes the sample page fill the window. */html,body{height:100%;margin:0;padding:0;}gmp-map{height:400px;}

HTML

<html>  <head>    <title>Add a Map Web Component with Events</title>    <link rel="stylesheet" type="text/css" href="./style.css" />    <script type="module" src="./index.js"></script>  </head>  <body>    <gmp-map           center="43.4142989,-124.2301242"      zoom="4"      map-id="DEMO_MAP_ID"    >      <gmp-advanced-marker        position="37.4220656,-122.0840897"        title="Mountain View, CA"        gmp-clickable      ></gmp-advanced-marker>      <gmp-advanced-marker        position="47.648994,-122.3503845"        title="Seattle, WA"        gmp-clickable      ></gmp-advanced-marker>    </gmp-map>    <!-- prettier-ignore -->    <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))})        ({key: "AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg", v: "beta"});</script>  </body></html>

Try Sample

Clone Sample

Git and Node.js are required to run this sample locally. Follow theseinstructions to install Node.js and NPM. The following commands clone, install dependencies and start the sample application.

gitclone-bsample-web-components-eventshttps://github.com/googlemaps/js-samples.gitcdjs-samplesnpminpmstart

Other samples can be tried by switching to any branch beginning withsample-SAMPLE_NAME.

gitcheckoutsample-SAMPLE_NAMEnpminpmstart

Except as otherwise noted, the content of this page is licensed under theCreative Commons Attribution 4.0 License, and code samples are licensed under theApache 2.0 License. For details, see theGoogle Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-10-31 UTC.