@ngdoc error
@name orderBy:notarray
@fullName Value is not array-like
@description

This error occurs when {@link ng.orderBy orderBy} is not passed an array-like value:
```html
<div ng-repeat="(key, value) in myObj | orderBy:someProp">
  {{ key }} : {{ value }}
</div>
```

`orderBy` must be used with an array-like value so a subset of items can be returned.
The array can be initialized asynchronously and therefore `null` or `undefined` won't throw this error.

To use `orderBy` to order the properties of an object, you can create your own array based on that object:
```js
angular.module('aModule', [])
  .controller('aController', function($scope) {
    var myObj = {
      one: {id: 1, name: 'Some thing'},
      two: {id: 2, name: 'Another thing'},
      three: {id: 3, name: 'A third thing'}
    };

    $scope.arrFromMyObj = Object.keys(myObj).map(function(key) {
      return myObj[key];
    });
  });
```
That can be used as:
```html
<label>
  Order by:
  <select ng-model="orderProp" ng-options="prop for prop in ['id', 'name']"></select>
</label>
<div ng-repeat="item in arrFromMyObj | orderBy:orderProp">
  [{{ item.id }}] {{ item.name }}
</div>
```

You could as well convert the object to an array using a filter such as
[toArrayFilter](https://github.com/petebacondarwin/angular-toArrayFilter):
```html
<label>
  Order by:
  <select ng-model="orderProp" ng-options="prop for prop in ['id', 'name']"></select>
</label>
<div ng-repeat="item in myObj | toArray:false | orderBy:orderProp">
  [{{ item.id }}] {{ item.name }}
</div>
```