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define([], function() {
  /** Used for built-in method references. */  var objectProto = Object.prototype;
  /** Used to check objects for own properties. */  var hasOwnProperty = objectProto.hasOwnProperty;
  /**   * Initializes an array clone.   *   * @private   * @param {Array} array The array to clone.   * @returns {Array} Returns the initialized clone.   */  function initCloneArray(array) {    var length = array.length,        result = new array.constructor(length);
    // Add properties assigned by `RegExp#exec`.    if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {      result.index = array.index;      result.input = array.input;    }    return result;  }
  return initCloneArray;});