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Javascript 角推后无法读取值_Javascript_Angularjs_Return_Push - Fatal编程技术网

Javascript 角推后无法读取值

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

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