1  /*!
 2   * is-extendable <https://github.com/jonschlinkert/is-extendable>
 3   *
 4   * Copyright (c) 2015, Jon Schlinkert.
 5   * Licensed under the MIT License.
 6   */
 7  
 8  'use strict';
 9  
10  module.exports = function isExtendable(val) {
11    return typeof val !== 'undefined' && val !== null
12      && (typeof val === 'object' || typeof val === 'function');
13  };