Convert Javascript Object to form data

//Following function will return formdata for your javascript object
//It will process Array and File Data Types also.
//It will process Array and File Data Types also.




function GenerateFormData(obj, form, Namespace) {
    var ObjKeys = Object.keys(obj)
    var formData = form || new FormData();
    $.each(ObjKeys, function (index, key) {
        if (obj[key] instanceof Array) {
            for (var i = 0; i < obj[key].length; i++) {
                var ObjPrefix = "";
                if (Namespace)
                {
                    ObjPrefix = Namespace + "." + key + "[" + i + "]";
                }
                else {
                    ObjPrefix =  key + "[" + i + "]";
                }
                if (obj[key][i] instanceof File) {
                    formData.append(ObjPrefix, obj[key][i]);
                }
                else if (obj[key][i] instanceof Object) {
                    formData = GenerateFormData(obj[key][i], formData, ObjPrefix);
                }
                else {
                    formData.append(ObjPrefix, obj[key][i]);
                }
 
            }
 
        }
        else {
            var ObjPrefix = "";
            if (Namespace) {
                ObjPrefix = Namespace + "." + key;
            }
            else {
                ObjPrefix = key;
 
            }
 
            if (obj[key] instanceof File) {
                formData.append(ObjPrefix, obj[key]);
            }
            else if (obj[key] instanceof Object) {
                formData = GenerateFormData(obj[key], formData, ObjPrefix);
            }
            else {
                formData.append(ObjPrefix, obj[key]);
            }
        }
    });
 
    return formData;
}

var obj={ID:10,Name:"Udayakumar",Age:18,Subject:["Tamil","English","Maths","Science"]};

var UmDataCollection=GenerateFormData(obj,null,"model");