Error: The reference to "google" has not been defined within the context of the Google Maps

Having trouble with Java script even though everything seems to be working fine. I am unable to run the code that follows, specifically the Google function which is crucial. Is there a way to remove this error or find another solution?

//Error occurs on this line
google.maps.event.addDomListener(window, 'load', initGoogleMap);

//Due to the error, this code does not execute properly
        google.maps.event.addListener(marker, 'click', function() {
            if(!marker.open){
                infoWindow.open(map,marker);
                marker.open = true;
            }
            else{
                infoWindow.close();
                marker.open = false;
            }
            google.maps.event.addListener(map, 'click', function() {
                infoWindow.close();
                marker.open = false;
            });
        });

Answer №1

google.maps.event.addDomListener(window, 'load', initializeMap);

The above code is used to call the function initializeMap when the window loads. Here are some reasons why you might be experiencing an error:

  1. You have not defined the function initializeMap.
  2. This code is being executed before the Google Maps library has loaded.

To resolve this issue, you can follow these steps:

  • Remove or comment out the line of code mentioned.
  • Add the following code
    <body onload = initializeMap()>
    in your body tag. Your body tag will then look like this:

<body onload = initializeMap()>

I hope this solution helps. If you have any questions, feel free to ask me.

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