Собственно, ругаться будет и на остальные data.title, data.lng и т.д
При чем всё работает как надо, но ошибка мозолит глаз
var markers_1 = [{
"title": 'Alibag',
"lat": '1.641400',
"lng": '2.872200',
"description": 'Alibaug is a coastal town and a municipal council in Raigad District in the Konkan region of Maharashtra, India.'
}, {
"title": 'Aurangabad',
"lat": '3.879700',
"lng": '4.335300',
"description": 'Aurangabad'
}, {
"title": 'Dombivli',
"lat": '5.218400',
"lng": '6.086700',
"description": 'Dombivli'
}, {
"title": 'Lonavla',
"lat": '7.750000',
"lng": '8.416700',
"description": 'Lonavla'
}];
var markers_2 = [{
"title": '21',
"lat": '9.641400',
"lng": '10.872200',
"description": 'Alibaug is a coastal town and a municipal council in Raigad District in the Konkan region of Maharashtra, India.'
}, {
"title": '22',
"lat": '11.879700',
"lng": '12.335300',
"description": 'Aurangabad'
}, {
"title": '23',
"lat": '13.218400',
"lng": '14.086700',
"description": 'Dombivli'
}, {
"title": '24',
"lat": '15.750000',
"lng": '16.416700',
"description": 'Lonavla'
}];
var markers_3 = [{
"title": '31',
"lat": '17.641400',
"lng": '18.872200',
"description": 'Alibaug is a coastal town and a municipal council in Raigad District in the Konkan region of Maharashtra, India.'
}, {
"title": '32',
"lat": '20.879700',
"lng": '21.335300',
"description": 'Aurangabad'
}, {
"title": '33',
"lat": '22.218400',
"lng": '23.086700',
"description": 'Dombivli'
}, {
"title": '34',
"lat": '24.750000',
"lng": '25.416700',
"description": 'Lonavla'
}];
var markers_4 = [{
"title": '41',
"lat": '26.641400',
"lng": '27.872200',
"description": 'Alibaug is a coastal town and a municipal council in Raigad District in the Konkan region of Maharashtra, India.'
}, {
"title": '42',
"lat": '28.879700',
"lng": '29.335300',
"description": 'Aurangabad'
}, {
"title": '43',
"lat": '30.218400',
"lng": '31.086700',
"description": 'Dombivli'
}, {
"title": '44',
"lat": '32.750000',
"lng": '33.416700',
"description": 'Lonavla'
}];
var cate_amount= 5; //количество категорий
function refresh_cate(){
for (var i = 1; i < cate_amount+1; i++) {
document.getElementById("list_"+i).style.display = "none";
}
}
function refresh_cate_first(){
for (var i = 2; i < cate_amount+1; i++) {
document.getElementById("list_"+i).style.display = "none";
}
}
var map;
var markerObjects = [];
function initialize() {
var myOptions = {
center: new google.maps.LatLng(markers_1[0].lat, markers_1[0].lng),
zoom: 7,
mapTypeId: google.maps.MapTypeId.ROADMAP,
disableDefaultUI: true,
styles: [{"featureType":"administrative","elementType":"all","stylers":[{"saturation":"-100"}]},{"featureType":"administrative.province","elementType":"all","stylers":[{"visibility":"off"}]},{"featureType":"landscape","elementType":"all","stylers":[{"saturation":-100},{"lightness":65},{"visibility":"on"}]},{"featureType":"poi","elementType":"all","stylers":[{"saturation":-100},{"lightness":"50"},{"visibility":"simplified"}]},{"featureType":"road","elementType":"all","stylers":[{"saturation":"-100"}]},{"featureType":"road.highway","elementType":"all","stylers":[{"visibility":"simplified"}]},{"featureType":"road.arterial","elementType":"all","stylers":[{"lightness":"30"}]},{"featureType":"road.local","elementType":"all","stylers":[{"lightness":"40"}]},{"featureType":"transit","elementType":"all","stylers":[{"saturation":-100},{"visibility":"simplified"}]},{"featureType":"water","elementType":"geometry","stylers":[{"hue":"#ffff00"},{"lightness":-25},{"saturation":-97}]},{"featureType":"water","elementType":"labels","stylers":[{"lightness":-25},{"saturation":-100}]}]
};
map = new google.maps.Map(document.getElementById("map"), myOptions);
// drop markers one by one
place();
} // initialize
function place(){
map.setZoom(5);
var selectedOption = $('#objects_category').find(":selected").val();
var data_id = eval(`markers_${selectedOption}`);
map.setCenter(new google.maps.LatLng(data_id[0].lat, data_id[0].lng));
//очищаем все предыдущие
$('.list-group-item').remove();
for (markerIndex in markerObjects) {
markerObjects[markerIndex].setMap(null);
}
var i = 0;
var interval = setInterval(function() {
var data = data_id[i];
var myLatlng = new google.maps.LatLng(data.lat, data.lng);//вот на эту ругается
// initial icon
var defaultMarkerColor = '999';
var pinImage = new google.maps.MarkerImage("https://chart.apis.google.com/chart?chst=d_map_pin_letter&chld=%E2%80%A2|" + defaultMarkerColor);
// marker object for the marker
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: data.title,
animation: google.maps.Animation.DROP,
icon: pinImage
});
// store in a global array
var markerIndex = markerObjects.push(marker) - 1;
// click listener on a marker itself
google.maps.event.addListener(markerObjects[markerIndex], 'click', function() {
var marker = this;
});
// create a row in the overlay table and bind onhover
var $row = $('<li>')
.addClass('list-group-item')
.html(data.title)
.on('mouseenter', function() {
var marker = markerObjects[markerIndex];
})
.on('mouseleave', function() {
var marker = markerObjects[markerIndex];
});
// create colorpicker and append to row
$cp_div = $('<a href="#" ></a>');
$row.appendTo('#overlay');
// continue iteration
i++;
if (i ==data.length) {
clearInterval(interval);
}
}, 100);
}
google.maps.event.addDomListener(window, 'load', initialize);