I am having a very annoying issue with Google Map V3 JavaScript API. The problem might be related to my JavaScript code though.<\/p>\n
Here is my complete code:<\/p>\n
\n var __mvcGoogleMap;\n var __mvcGeocoder;\n var markersArray = [];\n var infoWindowsArray = [];\n\n function _initializeGoogleMap() {\n\n __mvcGeocoder = new google.maps.Geocoder();\n\n var latlng = new google.maps.LatLng(38.98569417582484, 35.351452857849154);\n\n var myOptions = {\n zoom: 6,\n center: latlng,\n mapTypeId: google.maps.MapTypeId.HYBRID,\n panControl: true,\n zoomControl: true,\n mapTypeControl: true,\n scaleControl: true,\n streetViewControl: false,\n overviewMapControl: true\n };\n __mvcGoogleMap = new google.maps.Map(document.getElementById(\"map_canvas\"), myOptions);\n }\n\n function findOnMap() { \n\n var srchVal = $(\"#txtMapSearch\").val();\n\n __mvcGeocoder.geocode({'address': srchVal}, function(results, status) {\n\n if (status == google.maps.GeocoderStatus.OK) {\n\n actionURL = '\/accommodation\/HotelsForMap';\n actionData = 'lat=' + results[0].geometry.location.lat() + '&lng=' + results[0].geometry.location.lng();\n\n var _latLongs = [];\n var _infoWindows = [];\n\n $.ajax({\n type: \"POST\",\n url: actionURL,\n data: actionData,\n success: function (r) {\n\n if (markersArray) {\n for (i in markersArray) {\n markersArray[i].setMap(null);\n }\n markersArray.length = 0;\n }\n\n for (var i = 0; i < r.length; i++) {\n\n _latLongs.length = 0;\n _infoWindows.length = 0;\n\n _latLongs[i] = new google.maps.LatLng(r[i].LatLong.Latitude, r[i].LatLong.Longitute);\n\n addMarker(_latLongs[i], r[i].Title);\n addInfoWindow(r[i].InfoWindow.Content, markersArray[i]);\n google.maps.event.addListener(markersArray[i], 'click', function() {\n\n infoWindowsArray[i].open(__mvcGoogleMap, markersArray[i]);\n });\n }\n\n var _currentPossition = results[0].geometry.location;\n __mvcGoogleMap.setCenter(_currentPossition);\n __mvcGoogleMap.setZoom(14);\n }\n });\n } else {\n alert(\"Geocode was not successful for the following reason: \" + status);\n }\n });\n }\n\n function addMarker(location, title) {\n marker = new google.maps.Marker({\n position: location,\n title: title,\n map: __mvcGoogleMap,\n draggable: false\n });\n\n markersArray.push(marker);\n }\n\n function addInfoWindow(content, marker) { \n\n infoWindow = new google.maps.InfoWindow({\n content: content\n });\n infoWindowsArray.push(infoWindow);\n }\n\n $(function() { \n $.getScript('http:\/\/maps.google.com\/maps\/api\/js?sensor=false&callback=_initializeGoogleMap', function() { \n $(window).load(_initializeGoogleMap);\n });\n });\n\n $(\"#btnMapSearch\").click(function() { \n findOnMap();\n });\n\n<\/code><\/pre>\nHere is the situation: what I am trying to do is that after I initialize the map and search for a place, I get that places LatLang values and send it to my server. Then I get the results back from my server with some hotel info (name, lat, lang, etc).<\/p>\n
Then, I set the marker proper places and I attach infoWindow to each marker. Everything works fine except for infoWindows.<\/p>\n
When I click a marker, I see this error on browser console window:<\/p>\n
\nUncaught TypeError: Cannot call method ‘open’ of undefined<\/p>\n<\/blockquote>\n
Can you please have a look at what I am doing wrong here?<\/p>\n
\n- \n
You will need to create a closure for the value of i<\/code> so that it is assigned to the enclosed variable at the time each anonymous function is created. If not, as you continue through the loop, the value of i<\/code> will change until the loop exits and it is left holding a value that is the length of your array + 1 (which is always an undefined index), and this is the i<\/code> to which all of your anonymous functions refer. Try the following in your AJAX callback loop:<\/p>\ngoogle.maps.event.addListener(markersArray[i], 'click', (function(idx) {\n return function() {\n infoWindowsArray[idx].open(__mvcGoogleMap, markersArray[idx]);\n };\n})(i));\n<\/code><\/pre>\n<\/li>\n<\/ol>\nOriginally posted 2013-11-09 23:17:03. <\/small><\/p>","protected":false},"excerpt":{"rendered":"
I am having a very annoying issue with Google Map V3 JavaScript API. The problem might be related to my JavaScript code though. Here is my complete code: var __mvcGoogleMap; var __mvcGeocoder; var markersArray = []; var infoWindowsArray = []; function _initializeGoogleMap() { __mvcGeocoder = new google.maps.Geocoder(); var latlng = new google.maps.LatLng(38.98569417582484, 35.351452857849154); var myOptions […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1036","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/1036","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=1036"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/1036\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=1036"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=1036"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=1036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}