Listening to DOM Events

This example listens for DOM events. It displays an alert when the DIV containing the map is clicked.

Read the documentation .

TypeScript

 async 
  
 function 
  
 initMap 
 () 
  
 { 
  
 // Request needed libraries. 
  
 const 
  
 { 
  
 Map 
  
 } 
  
 = 
  
 await 
  
 google 
 . 
 maps 
 . 
 importLibrary 
 ( 
 "maps" 
 ) 
  
 as 
  
 google 
 . 
 maps 
 . 
 MapsLibrary 
 ; 
  
 const 
  
 mapDiv 
  
 = 
  
 document 
 . 
 getElementById 
 ( 
 "map" 
 ) 
  
 as 
  
 HTMLElement 
 ; 
  
 const 
  
 map 
  
 = 
  
 new 
  
 google 
 . 
 maps 
 . 
 Map 
 ( 
 mapDiv 
 , 
  
 { 
  
 zoom 
 : 
  
 8 
 , 
  
 center 
 : 
  
 new 
  
 google 
 . 
 maps 
 . 
 LatLng 
 ( 
 - 
 34.397 
 , 
  
 150.644 
 ), 
  
 }); 
  
 // We add a DOM event here to show an alert if the DIV containing the 
  
 // map is clicked. 
  
 google 
 . 
 maps 
 . 
 event 
 . 
 addDomListener 
 ( 
 mapDiv 
 , 
  
 "click" 
 , 
  
 () 
  
 = 
>  
 { 
  
 window 
 . 
 alert 
 ( 
 "Map was clicked!" 
 ); 
  
 }); 
 } 
 initMap 
 (); 
  

JavaScript

 async 
  
 function 
  
 initMap 
 () 
  
 { 
  
 // Request needed libraries. 
  
 const 
  
 { 
  
 Map 
  
 } 
  
 = 
  
 await 
  
 google 
 . 
 maps 
 . 
 importLibrary 
 ( 
 "maps" 
 ); 
  
 const 
  
 mapDiv 
  
 = 
  
 document 
 . 
 getElementById 
 ( 
 "map" 
 ); 
  
 const 
  
 map 
  
 = 
  
 new 
  
 google 
 . 
 maps 
 . 
 Map 
 ( 
 mapDiv 
 , 
  
 { 
  
 zoom 
 : 
  
 8 
 , 
  
 center 
 : 
  
 new 
  
 google 
 . 
 maps 
 . 
 LatLng 
 ( 
 - 
 34.397 
 , 
  
 150.644 
 ), 
  
 }); 
  
 // We add a DOM event here to show an alert if the DIV containing the 
  
 // map is clicked. 
  
 google 
 . 
 maps 
 . 
 event 
 . 
 addDomListener 
 ( 
 mapDiv 
 , 
  
 "click" 
 , 
  
 () 
  
 = 
>  
 { 
  
 window 
 . 
 alert 
 ( 
 "Map was clicked!" 
 ); 
  
 }); 
 } 
 initMap 
 (); 
  

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 
 ; 
 } 
  

HTML

<html>
  <head>
    <title>Listening to DOM Events</title>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <div id="map"></div>

    <!-- 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: "weekly"});</script>
  </body>
</html>  

Try Sample

Clone Sample

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

  
  git 
  
 clone 
  
 - 
 b 
  
 sample 
 - 
 event 
 - 
 domListener 
  
 https 
 : 
 //github.com/googlemaps/js-samples.git 
 
  
  cd 
  
 js 
 - 
 samples 
 
  
  npm 
  
 i 
 
  
  npm 
  
 start 
 

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

  
  git 
  
 checkout 
  
 sample 
 - 
  SAMPLE_NAME 
 
 
  
  npm 
  
 i 
 
  
  npm 
  
 start 
 
Create a Mobile Website
View Site in Mobile | Classic
Share by: