Question

是否可以使用不同的特定实现内联初始化接口类型IFooFace的数组？或者它是不可能的，我必须在数组之前初始化我的对象，然后只是传入它们？

这就是我在C＃中的表现方式：

public interface IFooFace
{
    int Id { get; }
}

public class Bar : IFooFace
{
    public int Id { get; set; }
    public string Name { get; set; }
}

public class Zar : IFooFace
{
    public int Id { get; set; }
    public string MegaName { get; set; }
}

internal class Program
{
    public static IFooFace[] Data =
    {
        new Bar
        {
            Id = 0,
            Name = "first"
        },
        new Zar
        {
            Id = 1,
            MegaName = "meeeega"
        }
    };
}

这就是我在TypeScript中尝试过的：

export interface IFooFace {
  id: number;   
}

export class Bar implements IFooFace {
    public id: number; 
    public name: string;
    // a lot of more properties
}

export class Zar implements IFooFace {
    public id: number; 
    public megaName: string;
    // a lot of more properties 
}

var Data : IFooFace[] =  [
    // how to initialize my objects here? like in C#?

    // this won't work:

    // new Bar(){
    //     id: 0,
    //     name: "first"
    // },
    // new Zar() {
    //     id: 1,
    //     megaName: "meeeeega"
    // }



    // this also doesn't work:
    // {
    //     id: 0,
    //     name: "first"
    // },
    //  {
    //     id: 1,
    //     megaName: "meeeeega"
    // }    
];

Answer 1

不，TypeScript does not have object initializers。 @RyanCavanaugh在TS中显示possible solution：

class MyClass {
  constructor(initializers: ...) { ... }
}

var x = new MyClass({field1: 'asd', 'field2: 'fgh' });

内联在接口类型的数组中初始化不同类型的对象

1 个答案: