code: function _shallowEqual(lhs, rhs) {
      var lhsKeys = Object.keys(lhs);
      var rhsKeys = Object.keys(rhs);
      if (lhsKeys.length !== rhsKeys.length) {
        return false;
      }
      for (var k in lhs) {
        if (lhs[k] !== rhs[k]) {
          return false;
        }
      }
      return true;
    }
docs: Checks for equality of all keys and values on the two objects.