object.js

/**
 * Get element from obj by string path
 * @param  {string} path
 * @param  {Object} obj reference object. If not provided or invalid, window will be used
 * @return {mixed}
 */
App.helpers.object.getFlattened = function (path, obj) {
    "use strict";

    if (typeof path !== "string") {
        throw "path must be string";
    }

    if (obj instanceof Object === false) {
        obj = window;
    }

    path = path.split('.');
    var i,
        size = path.length,
        response = obj;

    for (i = 0; i < size; i += 1) {
        if (response instanceof Object === false) {
            return null;
        }

        if (response.hasOwnProperty(path[i])) {
            response = response[path[i]];
        } else {
            return null;
        }
    }

    return response;
};