How to remove quotes from array - angularjs

Question

My native app tries to place markers from JSON.
Example of JSON data:
{
"status": "ok",
"count": 15,
"count_total": 600,
"pages": 40,
"posts": [
{
"ID": "2290",
"title": "Title",
"tag": "Tag",
"lat": "53.11691211703813",
"lng": "26.03631556034088",
"thumb": "getImage-24-100x100.jpg",
"fullimg": "getImage-24.jpg",
"imgs": [
{
"imgurl": "getImage-24-300x200.jpg"
}
],
"place": "Place",
"type": "Photo",
"period": "Period",
"year": "1985",
"url": "URL",
"author": "Author"
}]}
My controller:
var addressPointsToMarkers = function(points) {
return points.map(function(ap) {
return {
layer: 'realworld',
lat: ap.lat,
lng: ap.lng
};
});
};
$http.get("sample.json").success(function(data) {
$scope.markers = addressPointsToMarkers(data.posts);
});
This returns array of markers, like this: [{"layer":"realworld","lat":"53.11691211703813","lng":"26.03631556034088"}]
But I need to remove quotes from LAT and LNG coordinates: [{"layer":"realworld","lat":53.11691211703813,"lng":26.03631556034088}]

Answer 1

You have to convert the string values into number values. You can do that by adding a + in front of them, like this:
return points.map(function(ap) {
return {
layer: 'realworld',
lat: +ap.lat,
lng: +ap.lng
};
});

Answer 2

use JSON.parse().
E.g. :
return points.map(function(ap) {
return {
layer: 'realworld',
lat: JSON.parse(ap.lat),
lng: JSON.parse(ap.lng)
};
});