Sorting dropdown (filled with dictionaries) in AngularJS -


i have items 2-d dictionary : each element of following form : 

{'key': {'count': value}}

i sort dropdown using count : 

<select ng-model="selected" ng-options="k (k,v) in items | orderby:'v.count'"></select>

unfortunately, tried above not working (it doesn't sort) , not sure how so.

thanks


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