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Asked: 2026-06-18T12:41:06+00:00

I was trying to simplify the way I add Google maps to my pages.

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I was trying to simplify the way I add Google maps to my pages.

I’m using this markup for each map:

<div class="map" data-coordinates="-34.397, 150.644">
    <div class="canvas" id="map_canvas"></div>
</div>

and this jquery code:

jQuery(function($) {

    var maps = $('.map');

    maps.each(function() {
        var $this = $(this),
            mapId = $this.find('.canvas').attr('id'),
            coordinates= $this.data('coordinates');

        // set map options
        var mapOptions = {
            center: new google.maps.LatLng(coordinates),
            zoom: 8,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };

        // create the map
        var map = new google.maps.Map(document.getElementById(mapId), mapOptions);
    });
});

this is a recreation of the tutorial on the google maps website.

when I do it like the tutorial it works fine, but when I use my code above I get the map controls with a grey background, I also tried jQuery(window).load(); with the same result, and the issue seems to be from each() because when I create the map without it, it works fine.

this is the code that works:

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
      html { height: 100% }
      body { height: 100%; margin: 0; padding: 0 }
      #map_canvas { height: 100% }
    </style>
    <script type="text/javascript"
  src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&sensor=SET_TO_TRUE_OR_FALSE">
    </script>
    <script type="text/javascript">
      function initialize() {
        var mapOptions = {
          center: new google.maps.LatLng(-34.397, 150.644),
          zoom: 8,
          mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        var map = new google.maps.Map(document.getElementById("map_canvas"),
            mapOptions);
      }
    </script>
  </head>
  <body onload="initialize()">
    <div id="map_canvas" style="width:100%; height:100%"></div>
  </body>
</html>
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1 Answer

  1. Editorial Team

    There’s a problem with coordonates.

    google.maps.LatLng() accepts Lat and Lng as separate params, not a composite string.

    Try :

    jQuery(function($) {
    $('.map').each(function() {
        var $this = $(this),
            canvas = $this.find('.canvas').get(0),
            coordinates = $this.data('coordinates').split(/,\s?/);

        // set map options
        var mapOptions = {
            center: new google.maps.LatLng(Number(coordinates[0]), Number(coordinates[1])),
            zoom: 8,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };

        // create the map
        var map = new google.maps.Map(canvas, mapOptions);
    });
});

    You might need to test that regexp.

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