1 var global = require('../internals/global');
2 var isCallable = require('../internals/is-callable');
4 var aFunction = function (argument) {
5 return isCallable(argument) ? argument : undefined;
8 module.exports = function (namespace, method) {
9 return arguments.length < 2 ? aFunction(global[namespace]) : global[namespace] && global[namespace][method];