OVER_QUERY_LIMIT in Google Maps API v3: How do I pause/delay in Javascript to slow it down?

Question

I\'m hitting an issue that is WELL discussed in these forums, but none of the recommendations seem to be working for me so I\'m looking for some full javascript that works w

Answer 1

Here I have loaded 2200 markers. It takes around 1 min to add 2200 locations. https://jsfiddle.net/suchg/qm1pqunz/11/

//function to get random element from an array
    (function($) {
        $.rand = function(arg) {
            if ($.isArray(arg)) {
                return arg[$.rand(arg.length)];
            } else if (typeof arg === "number") {
                return Math.floor(Math.random() * arg);
            } else {
                return 4;  // chosen by fair dice roll
            }
        };
    })(jQuery);

//start code on document ready
$(document).ready(function () {
    var map;
    var elevator;
    var myOptions = {
        zoom: 0,
        center: new google.maps.LatLng(35.392738, -100.019531), 
        mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    map = new google.maps.Map($('#map_canvas')[0], myOptions);

    //get place from inputfile.js
    var placesObject = place;
    errorArray = [];

  //will fire 20 ajax request at a time and other will keep in queue
    var queuCounter = 0, setLimit = 20; 

  //keep count of added markers and update at top
  totalAddedMarkers = 0;

  //make an array of geocode keys to avoid the overlimit error
    var geoCodKeys = [
                    'AIzaSyCF82XXUtT0vzMTcEPpTXvKQPr1keMNr_4',
                    'AIzaSyAYPw6oFHktAMhQqp34PptnkDEdmXwC3s0',
                    'AIzaSyAwd0OLvubYtKkEWwMe4Fe0DQpauX0pzlk',
                    'AIzaSyDF3F09RkYcibDuTFaINrWFBOG7ilCsVL0',
                    'AIzaSyC1dyD2kzPmZPmM4-oGYnIH_0x--0hVSY8'                   
                ];

  //funciton to add marker
    var addMarkers = function(address, queKey){
        var key = jQuery.rand(geoCodKeys);
        var url = 'https://maps.googleapis.com/maps/api/geocode/json?key='+key+'&address='+address+'&sensor=false';

        var qyName = '';
        if( queKey ) {
            qyName = queKey;
        } else {
            qyName = 'MyQueue'+queuCounter;
        }

        $.ajaxq (qyName, {
            url: url,
            dataType: 'json'
        }).done(function( data ) {
                    var address = getParameterByName('address', this.url);
                    var index = errorArray.indexOf(address);
                    try{
                        var p = data.results[0].geometry.location;
                        var latlng = new google.maps.LatLng(p.lat, p.lng);
                        new google.maps.Marker({
                            position: latlng,
                            map: map
                        });
                        totalAddedMarkers ++;

            //update adde marker count
                        $("#totalAddedMarker").text(totalAddedMarkers);
                        if (index > -1) {
                            errorArray.splice(index, 1);
                        }
                    }catch(e){
                        if(data.status = 'ZERO_RESULTS')
                            return false;

            //on error call add marker function for same address
            //and keep in Error ajax queue
                        addMarkers( address, 'Errror' );
                        if (index == -1) {
                            errorArray.push( address );
                        }
                    }
        });

    //mentain ajax queue set
        queuCounter++;
        if( queuCounter == setLimit ){
            queuCounter = 0;
        }
    }

  //function get url parameter from url string
    getParameterByName = function ( name,href )
    {
      name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
      var regexS = "[\\?&]"+name+"=([^&#]*)";
      var regex = new RegExp( regexS );
      var results = regex.exec( href );
      if( results == null )
        return "";
      else
        return decodeURIComponent(results[1].replace(/\+/g, " "));
    }

  //call add marker function for each address mention in inputfile.js
    for (var x = 0; x < placesObject.length; x++) {
        var address = placesObject[x]['City'] + ', ' + placesObject[x]['State'];
        addMarkers(address);
    }
});