javascript - google map not showing up my location -


i show location on google map, don't know wrong. not showing thing :

   <div id="map-canvas" style="width:100%; height:300px;">     </div>  . . .  <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>       <script>             // google map             if ($('#map-canvas').length) {                         var                         google_map_lat = 40.7564971,                         google_map_lng = -73.9743277;                 var map,                         service;                 jquery(function($) {                     $(document).ready(function() {                         var latlng = new google.maps.latlng(google_map_lat, google_map_lng);                         var myoptions = {                             zoom: 14,                             center: latlng,                             maptypeid: google.maps.maptypeid.roadmap                         };                          map = new google.maps.map(document.getelementbyid("map-canvas"), myoptions);                           var marker = new google.maps.marker({                             position: latlng,                             map: map                         });                         marker.setmap(map);                           $('a[href="#google-map-tab"]').on('shown.bs.tab', function(e) {                             google.maps.event.trigger(map, 'resize');                             map.setcenter(latlng);                         });                     });                 });             }          </script> </body>

updated

my console messages :

using //@ indicate sourcemappingurl pragmas deprecated. use //# instead jquery.js:1:0 password fields present on insecure (http://) page. security risk allows user login credentials stolen.[learn more] <unknown> syntaxerror: expected expression, got '<' myjs.js:1:0 typeerror: $(...).position(...) undefined  custom.js:308:20 use of getpreventdefault() deprecated.  use defaultprevented instead.

i think need include jquery library, because using $(document).ready(function() . have updated code adding jquery library. please try below code , hope work.

    <div id="map-canvas" style="width:100%; height:300px;">      </div>     <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>     <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>     <script>         // google map         if ($('#map-canvas').length) {                     var                     google_map_lat = 40.7564971,                     google_map_lng = -73.9743277;             var map,                     service;             jquery(function($) {                 $(document).ready(function() {                     var latlng = new google.maps.latlng(google_map_lat, google_map_lng);                     var myoptions = {                         zoom: 14,                         center: latlng,                         maptypeid: google.maps.maptypeid.roadmap                     };                      map = new google.maps.map(document.getelementbyid("map-canvas"), myoptions);                       var marker = new google.maps.marker({                         position: latlng,                         map: map                     });                     marker.setmap(map);                       $('a[href="#google-map-tab"]').on('shown.bs.tab', function(e) {                         google.maps.event.trigger(map, 'resize');                         map.setcenter(latlng);                     });                 });             });         }      </script>

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