orderBy array item value in Angular ng-repeat

Since 1.3.0-rc.5

Since AngularJS 1.3.0-rc.5, the orderBy filter (see the documentation) will automatically sort the array using its items if no additional parameters are provided.

<li ng-repeat="item in items | orderBy">{{item}}</li>

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Before 1.3.0-rc.5

The orderBy filter (see the historical documentation) can also take a function as second parameter, whose return value will be compared using the <, = and > operator.
You can simply use the angular.identity (see the documentation) for that purpose:

$scope.identity = angular.identity;

<li ng-repeat="item in items | orderBy:identity">{{item}}</li>

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