angular2 /打字稿将字符串转换为数组

Question

JSON.stringify(this.p)
console.log(this.p + " " + typeof(this.p))

These statements give me

[{lat:52.52193980072258,lng:13.401432037353516},{lat:52.52319316685915,lng:13.407096862792969},{lat:52.51969409696076,lng:13.407225608825684}] string

So this.p is a string. If I use it to draw a polygon in my google map, it gives not an Array exception (but natural!).

How can I convert it to an array (of type perhaps google.maps.LatLngLiteral or any suitable one)?

Note : If I do after JSON.stringify(this.p) :

JSON.parse(this.p)
console.log(this.p + " " + typeof( this.p))

this says: SyntaxError: Unexpected token l in JSON at position 2

What's going wrong and how can I fix it?

I use it like this in my polygon:

 var polygon = new google.maps.Polygon({
          paths: this.p,
          strokeColor: '#FF0000',
          strokeOpacity: 0.8,
          strokeWeight: 3,
          fillColor: '#FF0000',
          fillOpacity: 0.35,
          map: this.map
        });

Answer 1

The complete method looks like following:

var myVar=[]

    this.exhibitionSurveyObjectService.getObjects()
    .subscribe(

      response => {       

        this.exhibitionSurveyObjects = response;
        console.log(this.exhibitionSurveyObjects)

        for(var i = 0; i < this.exhibitionSurveyObjects.length; i++){

          myVar.push(JSON.parse(this.exhibitionSurveyObjects[i].path)) 

        }

        var polygon = new google.maps.Polygon({
          paths: myVar,
          strokeColor: '#FF0000',
          strokeOpacity: 0.8,
          strokeWeight: 3,
          fillColor: '#FF0000',
          fillOpacity: 0.35,
          map: this.map
        });
      },

      error =>  {
        console.log("error")
        this.errorMessage = <any>error; 

      }

      )