Javascript 角推后无法读取值
我有如下代码:Javascript 角推后无法读取值,javascript,angularjs,return,push,Javascript,Angularjs,Return,Push,我有如下代码: $scope.offer = []; angular.forEach($scope.details, function (product) { SomeAPI.ById.query({ product: product.id }, function (response) { $scope.offer.push(response); }); return $scope.offer; }); console.log($scope.offer); 为什么控制台日志
$scope.offer = [];
angular.forEach($scope.details, function (product) {
SomeAPI.ById.query({ product: product.id }, function (response) {
$scope.offer.push(response);
});
return $scope.offer;
});
console.log($scope.offer);
为什么控制台日志仍然显示“[]
”?
在页面上,
{{offer}}
正确显示值。您的API是异步函数
SomeAPI.ById.query({ product: product.id }, callback);
console.log('query is still running. callback will be done later')
上述回调将在异步函数完成后调用。您的console.log会立即被调用可能重复的