text: define([
          './defined'
      ], function(
          defined) {
      'use strict';
  
      /**
       * Tests an object to see if it is an array.
       * @exports isArray
       *
       * @param {*} value The value to test.
       * @returns {Boolean} true if the value is an array, false otherwise.
       */
      var isArray = Array.isArray;
      if (!defined(isArray)) {
          isArray = function(value) {
              return Object.prototype.toString.call(value) === '[object Array]';
          };
      }
  
      return isArray;
  });
  