Typescript 对于可以包含具有不同属性的对象的数组，该接口是什么样子的？

我创建了以下接口和服务。请注意，“视图”属性将包含一个对象数组，但根据其使用位置，这些对象将具有不同的属性：

interface IAdminGridService  {
    view:   {any} []; // An array of objects. It could be an array of contents, 
                      // cities, streets etc. If it was an array of city objects
                      // then these objects might in themselves contain a list 
                      // of street objects. I don't need any checks here. Just 
                      // want it to be an array of any kind of object.
}

class AdminGridService implements IAdminGridService {
    view = getViewData('city'); // Returns an array of objects
}

在代码的另一部分中，我想这样做：

this.grid.view[this.home.rowSelected].tests.length > 0

代码正确地找到this.grid.view，但给出一条消息，说明：

The property 'tests' does not exist on value of type '{ any: any; }'

---

如何使我的界面更通用，以便在以后使用查看某些属性的代码时，不会出现上述语法错误？

只要

任何[]

都可以：

interface IAdminGridService  {
    view:   any[]; // An array of objects. It could be an array of contents, 
                   // cities, streets etc. If it was an array of city objects
                   // then these objects might in themselves contain a list 
                   // of street objects. I don't need any checks here. Just 
                   // want it to be an array of any kind of object.
}


var grid:IAdminGridService;
grid.view[this.home.rowSelected].tests.length > 0

---

您的类型定义

{any}[]

并不是您认为它的意思。它表示“具有名为

any

且其类型为

any

的属性的对象数组”。换句话说，它与

{any:any}[]

相同

---

如果一个类中存储对象的类型相同，则可以添加如下类型参数：

interface IAdminGridService<T> {
  view: T[];
}

class AdminGridService implements IAdminGridService<City> {
  // this class will treat this.view as a City[]
  // where City is the type definition of the object you are putting into the array
  this.view = getViewData('city');
}

并尽可能将用法转换为正确的类型：

(<City[]>this.view)[this.home.rowSelected].tests.length > 0

（this.view）[this.home.rowSelected].tests.length>0

(<City[]>this.view)[this.home.rowSelected].tests.length > 0