javascript - How to iterate over this hash?

I have this code

$.ajax({
    type: "GET",
    url: "/cgi-bin/ajax.pl",
    contentType: "application/json; charset=utf-8",
    dataType: "json",

    data: { "id" : id },

    // ...

    success: function(result){
    if (result.error) {
        alert('result.error: ' + result.error);
    } else {
        printObject(result);
    }

    }
});

where printObject outputs

responseText: Content-Type: application/json; charset=utf-8

{"276":"{\"var1\":[\"he\"],\"var2\":[\"he\",\"ki\",\"mt\"],\"var3\":\"07/06-2011\",\"var4\":[],\"var5\":\"ind\"}", ...

Question

How do I iterate over this hash?

Each array should just be treated as one variable. Ie. var2 would be he,ki,mt.

Answer

The result you got should already be parsed as json and it is available in result object. Just do result.276.var2 to get the array.