填充数组

My question is to fill an arrary with data from an ajax request. My ajax call receives the data fine and is logged n the console. What I'm having difficulty with is filling my array with that data. Here is my code.

        $.ajax({
        type: "GET",
        url: WebRoot + "ws/GIS.asmx/CensusData",
        data: d,
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (data) {
            //loop through the data and pull out the fips codes                
            //alert("success");
            fipsData = data;



            console.log(fipsData);
        } //ends success function
    });  //ends ajax call

Just use JSON.parse() like this:

fipsData = JSON.parse(data);

and you should be good to go.