google maps - Javascript setter function -

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i creating class function in js following create new google maps.

i have problem having default value zoom variable , able change after object has been created.

here piece of code of function:

function gmap(lat,lng){     this.latitude = lat;     this.longitude = lng;     this.mapcenter = new google.maps.latlng(lat, lng);     this.map = null;     this.zoom = 20; // default value      this.setzoom = function(value)     {         this.zoom = value;     }        this.getzoom = function()     {         return this.zoom;     }        this.mapoptions = {         center: this.mapcenter,         zoom: this.zoom     };     this.createmap = function(htmlelement)     {         map = new google.maps.map(document.getelementbyid(htmlelement), this.mapoptions);         return this.map;     }   }

i calling above this:

var gmap= new gmap(10, 20);      gmap.setzoom(9);  console.log(gmap.getzoom()); //returns 9  google.maps.event.adddomlistener(window, 'load', gmap.createmap('mapdiv')); //but creates map default zoom 20

you have functions set or properties of map. think functions can modify zoom property. hope useful you.

google maps documentation v3


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