| /* |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| 'use strict' |
| |
| var _ = require('lodash') |
| |
| module.exports = function() { |
| var args = _.flattenDeep(Array.prototype.slice.call(arguments)).reverse() |
| var emptyFunc = function() {} |
| return _.first(_.flattenDeep([args, _.get(args,'0.callback'), emptyFunc]).filter(_.isFunction)) |
| |
| } |