javascript - Update a Google Map Marker position by it's ID -

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i creating google map markers , assigning them id follows:

var marker = new google.maps.marker({              position: new google.maps.latlng(data.latitude, data.longitude),              map: map,              id: data.id });

this results in markers appearing on map want update position of markers @ later time, how can grab marker id have assigned , update it's position?

i understand can update position setposition(latlng:latlng) on marker object in google api how grab marker it's id?

try code

 <script  src="https://maps.googleapis.com/maps/api/js?key=your-api-key&libraries=places" type="text/javascript"></script>      <script>         $(document).ready(function () {               var long = $('#contentplaceholder1_hidlog').val();             var lati = $('#contentplaceholder1_hidlat').val();              var mapcenter = new google.maps.latlng(lati, long);                 var map;                 map_initialize();                 function map_initialize() {                       var googlemapoptions =                     {                         center: mapcenter,                         zoom: 18,                         pancontrol: true,                         zoomcontrol: true,                         zoomcontroloptions: {                             style: google.maps.zoomcontrolstyle.small                         },                         scalecontrol: true,                         maptypeid: google.maps.maptypeid.roadmap                     };                     var marker = new google.maps.marker({                         position: mapcenter,                         title: "event map"                     });                     map = new google.maps.map(document.getelementbyid("google_map"), googlemapoptions);                     marker.setmap(map);                 }                 var getcen = map.getcenter();                 google.maps.event.adddomlistener(window, 'resize', function () {                     map.setcenter(getcen);                 });                  google.maps.event.adddomlistener(window, 'load', map_initialize());                  google.maps.event.adddomlistener(window, "resize", resizingmap());                  $('#showmap').on('show.bs.modal', function () {                     resizemap();                 })                  function resizemap() {                     if (typeof map == "undefined") return;                     settimeout(function () { resizingmap(); }, 400);                 }                  function resizingmap() {                     if (typeof map == "undefined") return;                     var center = map.getcenter();                     google.maps.event.trigger(map, "resize");                     map.setcenter(center);                 }             });      </script>

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