如何用javascript解包嵌套函数

Question

大家好我的角度控制器上的每个人我都有以下方法：

$scope.scanSuccess = function(result) {
                    alert("We got a barcode\n" +
                            "Result: " + result.text + "\n" +
                            "Format: " + result.format + "\n" +
                            "Cancelled: " + result.cancelled);
                };

$scope.scanSuccessW = function(){
  return $scope.scanSuccess;
}

有没有办法从scanSuccessW开始获取scanSuccess？当我写这样的东西时：

var s = $scope.scanSuccessW;

总是指scanSuccessW（包装器）而不是包装方法;有没有办法在javascript上解包函数？

Answer 1

执行该函数，而不是获取对它的引用，因为它返回$scope.scanSuccess函数。

var s = $scope.scanSuccessW();
//                         ^^ use parenthesis to execute it