code: function shallowEqualArrays(a, b) {
      if (a.length !== b.length)
          return false;
      for (var /** @type {?} */ i = 0; i < a.length; ++i) {
          if (!shallowEqual(a[i], b[i]))
              return false;
      }
      return true;
  }
docs: @license
  Copyright Google Inc. All Rights Reserved.
  
  Use of this source code is governed by an MIT-style license that can be
  found in the LICENSE file at https://angular.io/license
   
  @param {?} a
  @param {?} b
  @return {?}