如何通过使用多个字段在同一时间排序在角?首先按组,然后按子组 例如
$scope.divisions = [{'group':1,'sub':1}, {'group':2,'sub':10}, {'group':1,'sub':2},{'group':1,'sub':20},{'group':2,'sub':1},
{'group':2,'sub':11}];
我想把它显示为
组:子组
1-1
1-2
1-20
2-1
2-10
2-11
<select ng-model="divs" ng-options="(d.group+' - '+d.sub) for d in divisions | orderBy:'group' | orderBy:'sub'" />