Question

I have a returned object list: data.d[15]

and one sample of it:

data.d[3] = {
CityId: 2,
CityName: "Ankara"}

I want to convert it to one object as

cities{
1: "Istanbul",
2: "Ankara",
3: "New York"
}

And it should be generic, so I dont know the “CityId” and “CityName” field names.
what is the best method for it?

thank you all… i have send fieldnames by field object -no dependencies important for this code-, it has been resolved.

            var url = this.options.url + "/" + field.values,
                id = field.fieldId,
                title = field.fieldTitle;

            this.getJSON(url, {}, function (rData) {
                var obj = {};

                for (i = 0; i < rData.d.length; i++)
                    obj[rData.d[i][id]] = rData.d[i][title];

                $("#" + parentId).html(self.getHtmlOfFormData(type, obj));
            });

Answer 1

Maybe you need to detect which property contains the name of the city. Maybe something like this can work?

var idprop, nameprop;
for (var prop in data.d[0]) {
    if (typeof data.d[0][prop] === "string") nameprop = prop;
    if (typeof data.d[0][prop] === "number") idprop = prop;
}

var cities = {};
for (var i = 0; i < data.d.length; i++)
   cities[data.d[i][idprop]] = data.d[i][nameprop];

Keep in mind that this works if:

1. data.d isn’t an empty array;
2. there’s just one string property that contains the city name;
3. there’s just one numeric property that contains the city id.