[英]Promises in functions, angularjs
如果可能的話,如何將承諾實現為功能,以便我可以擺脫超時? 我從工廠“Prim”獲取一些數據,函數看起來像:
$scope.getPre = function(id){
var url = WEB_API.MainUrl + '/api/prim/' + id +'/' + $window.sessionStorage.getItem('idsom');
Prim.getprim(function(data) {
$scope.prim1 = data;
$scope.prim = $scope.prim1[0];
}, url);
$scope.$apply();
}
和我想擺脫的超時:
setTimeout(function() { // it can't work without timeout
$scope.getPre($routeParams.idprim);
}, 100);
你的函數應該返回一個promise,所以你可以在它上面使用.then()
:
$scope.getPre = function(id){
var deferred = $q.defer()
var url = WEB_API.MainUrl + '/api/prim/' + id +'/' + $window.sessionStorage.getItem('idsom');
Prim.getprim(function(data)
$scope.prim1 = data;
$scope.prim = $scope.prim1[0];
deferred.resolve();
}, url);
return deferred.promise;
}
然后像這樣使用它:
$scope.getPre($routeParams.idprim).then(function () {
// Do whatever you did after setTimeout
});
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