Introducing Places UI Kit: A ready-to-use, low-cost component library that lets you bring the familiar Google Maps UI for Places to any map of your choice. Try it out, andshare your input to help shape the future of GMP!

Add a Map with Events using HTML

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

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Last updated 2025-07-18 UTC.