applyParamsToArgCallback [NOT WORKING]

gistfile1.js

"use strict";

var _ = require('lodash');
var utils = {};

/**
 * Apply the rest of the arguments to the last
 * item in function arguments (the callback)
 *
 * ```
 * arguments = [fnArguments, firstParamForCallback, secondParamForCallback, ...]`
 *
 * functionArguments = [firstParam, secondParam, ..., callback]
 * ```
 *
 * @example
 *
 *     function something() {
 *         utils.applyParamsToCallback(arguments, 1, 2, 3)
 *         // Calls arguments[last](1, 2, 3)
 *      }
 *
 */
utils.applyParamsToArgCallback = function() {
    var thisArgs = Array.prototype.slice.call(arguments);
    fnArgs = fnArgs || [];
    fnArgs = Array.prototype.slice.call(fnArgs);

    var callback = fnArgs.pop();
    var fnParams = _.rest(thisArgs) || [];

    callback.apply(undefined, fnParams);
};

module.exports = utils;