如何根据数组中的不同类别使用ng-repeat

i have sample data array like this lets focus on description key you can see in this array containt 3 objects but descriptions are oly two types (description1 and description2 ) i need to generate div s according to this description key in this case i need two div s description1 and description2 how can i do this i have sample data array like this lets focus o