Json.stringify TypeError: Converting circular structure to JSON

Question

Here is the Marker reference

var markers = [];
var marker = new google.maps.Marker({ position: e.latLng, map: map });  
markers.push(marker); // add marker to the global array

My loop to markers...

    var jsonObj = []; 
    for (var i = 0; i < markers.length; i++)
    {
        jsonObj.push({ latitude: markers[i].position, map: markers[i].map }); //key
    }

    alert(JSON.stringify(jsonObj)); // error

taxicala · Accepted Answer · 2015-10-22 20:15:54Z

2

The problem is that each marker has a reference to the map instance, and the map instance, has an array of markers (Which, redundantly, each one of them has a reference to map).

answered Oct 22, 2015 at 20:15

taxicala

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2 Comments

Nick Kahn Over a year ago

I did not realized that I have the same key and that can be changed so instead of map: markers[i].map I can have something like mapKey: markers[i].map ?

taxicala Over a year ago

I would not add the map instance at all. If you plan to have more than one map, I would create a key/value pair object with all map instances indexed by an id, and in your jsonObj instead of the whole map instace, store the id to retreive it later.

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