$範圍。$腕錶不叫，而模式發生了變化

Question

時vm.loadStats被稱爲

var vm = this; 

vm.loadStats = function(){ 
    vm.propositions = null; 
    DateUtils.convertLocalDateToServer(vm.dateDebut); 
    vm.dateFinSever = DateUtils.convertLocalDateToServer(vm.dateDebut); 
    vm.propositions = PropositionsAffaireBetweenPropositionDates.get({dateDebut :  vm.dateDebutServer, dateFin : vm.dateFinSever}); 
} 


$scope.$watch(['vm.propositions'], function(newValues, oldValues) { 
... 
} 

如果有誰知道爲什麼我的$範圍。$腕錶則不會觸發...
感謝

Answer 1

角$範圍對象有三個$手錶方法：

• $手錶，走字符串或函數

• $ watchGroup，以表達陣列

• $ watchCollection，拍攝物體

您應該使用$scope.$watch('vm.propositions', ...);或$scope.$watchGroup(['vm.propositions'], ...);

AngularJS Documentation on $scope

Answer 2

沒有錯代碼...這是一個小修復

//Note how I dropped "vm." prefix? its redundant because the strings you provide 
//inside the array are translated into $scope.[yourScopedVariable] 
$scope.$watch(['propositions'], function(newValues, oldValues) { 
... 
}