CODEWITHSUNDEEP
javascriptjquerygoogle-maps
astropanic
astropanic

Reputation: 10939

Accessing Google maps variable through jQuery

How I can load the Google maps like this: 

function loadScript() {
    var script = document.createElement("script");
    script.setAttribute("src", "http://maps.google.com/maps?file=api&v=2.x&key=ABQIAAAAAXN1Nhid00zgr5mrYEM7MhQE7kuAsiuX3WD62vgNgdNYG4wQzhQs7fQD8XzGkuXLIejRfouX3li8xg&async=2&callback=loadMap");
    script.setAttribute("type", "text/javascript");
    document.documentElement.firstChild.appendChild(script);
}
function loadMap(){
    var map = new GMap2(document.getElementById("google_map"));
}

$(document).ready(function(){
  loadMap();
  //How I can access the map variable here ?
});

And have access to the map variable via jQuery ?

I get an undefined error, because in the time when I try to access the map variable it is not defined yet.

Upvotes: 2

Views: 1076

Answers (2)

Marcel Korpel
Marcel Korpel

Reputation: 21763

You can't this way. map is declared locally to loadMap and you can't access it outside of that function. Moreover, you have to execute loadScript first. BTW, don't use setAttribute to set src and type.

Use a variable declared in the outer scope (preferably not the global scope), instead, like

<script>
    function loadScript() {
        var script = document.createElement("script");
        script.src = "http://maps.google.com/maps?file=api&v=2.x&key=ABQIAAAAAXN1Nhid00zgr5mrYEM7MhQ
        script.type = "text/javascript";
        document.documentElement.firstChild.appendChild(script);
    }

    loadScript();
</script>
<!-- close script element here to update DOM -->
<script>
    var map;  // declared outside loadMap

    function loadMap(){
        map = new GMap2(document.getElementById("google_map"));
    }

    $(document).ready(function(){
      loadMap();
      // Now map is available here
    });
</script>

Upvotes: 2

Srinivas Reddy Thatiparthy
Srinivas Reddy Thatiparthy

Reputation: 11155

Change the scope of map variable ,say declare it outside loadMap() function modify loadMap() function to, 

     var map;
     function loadMap(){
            loadScript() ;
            map = new GMap2(document.getElementById("google_map"));
        }

Upvotes: 2

Related Questions