This gist is used to augment object instances with a function called expand. It checks if the object has some property which includes dot characters in its name and translates it to deep level property nesting. e.g: account['user.name'] ==> account.user.name

expand.js

// Transforms a property of object which includes dots to nested property as follows
// object = {};
// object["firstlevelprop.secondlevelprop"] = "something"  =to=> object["firstlevelprop"]["secondlevelprop"] = "something"
(function () {
    var enableExpand = function () {
        //We dont want the method to appear in the object and mess with the rest of our object's properties
        Object.defineProperty(this, "expand", {
            enumerable: false, // Not visible
            configurable: false, // Not configurable
            value: function () {
                var nodes, object, value;
                for (var prop in this) {
                    // If there is inside the object a property with dot characters e.g: `obj['user.name']`
                    if (this.hasOwnProperty(prop) && prop.indexOf(".") > -1) {
                        // Initialize the object which will hold the reference to the property e.g : `obj['user']['name']`
                        object = this;
                        value = this[prop];
                        // then decompose the nesting of the properties in an array
                        nodes = prop.split(".");
                        // Iterate through the array of nodes starting from the 1st level node and going deeper
                        nodes.forEach(function(node,index,arr){
                            // If last reached assign it the value
                            if (!arr[index+1]) {
                                object[node] = value;
                            }else{
                                // If not exists, create an object.
                                object[node] = object[node] || {};
                            }
                            object = object[node];
                        });
                        // Delete the initial one which is now translated to nested level properties
                        delete(this[prop]);
                    }
                }
            }
        });
    };
    // Integrate it to object .
    enableExpand.call(Object.prototype);
})();
 
// Now can be used to an object as:
// object["firstlevelprop.secondlevelprop"] = "something";
// object.expand();
// conosle.log(object.firstlevelprop.secondlevelprop); //"something"