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Adding a button with onclick on InfoWindow - Google Maps API

InfoWindow in google maps is a type of toast div or should I say a popover that appears when we hover over the map marker, it contains information about a specific place anything you want to show in it.

  • Let me show you the easiest way to add a button with onclick function inside the infoWindow content string if nothing else is working or if you are trying to click on the button before the DOM is ready.

  • Content String:

let buttonName = "any name"; 
let contentString = "<div>" +
                     // other divs ....
                      "<button id='btn-click'>" + buttonName                       
                       + "</button>" 
                     // other divs ....

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  • Adding click event on your function:
google.maps.event.addListener(infoWindow, 'domready' () => {
 const someButton = document.getElementById('btn-click');
 if (someButton) {
   google.maps.listener.addDomListener(someButton, 'click',    
   () => {
           // show something.
           // add something.

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  • Marker Code:
google.maps.event.addListener(marker, 'mouseover', function(){
 // some code about setting content inside info window or showing up the info window however you want to show it.
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That's it, let me know if it worked :).

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