打字稿getter和setter错误 [英] Typescript getter and setter error

问题描述

好吧，这是我第一天使用Typescript做一些Angular 2，我试图提供一个简单的getter和setter服务.

Ok it's my first day doing some Angular 2 using typescript and I am try to make a simple getter and setter service.

import {Injectable} from "angular2/core";

@Injectable()
export class TodoService {

  private _todos:Array = [];

  get todos():Array {
    return this._todos;
  }

  set todos(value:Array) {
    this._todos = value;
  }

}

任何人都可以解释为什么Typescript编译器抛出以下错误，因为我认为应该没问题.

Can anyone explain why the Typescript compiler is throwing the following error as I think it should be ok.

ERROR in [default] /Users/testguy/WebstormProjects/angular2-seed/src/app/services/todo-service.ts:6:17 
Generic type 'Array<T>' requires 1 type argument(s).

ERROR in [default] /Users/testguy/WebstormProjects/angular2-seed/src/app/services/todo-service.ts:8:14 
Generic type 'Array<T>' requires 1 type argument(s).

ERROR in [default] /Users/testguy/WebstormProjects/angular2-seed/src/app/services/todo-service.ts:12:18 
Generic type 'Array<T>' requires 1 type argument(s).

推荐答案

在定义它时，您确实需要提到想要的Array类型，MyClass可以是string/number(数据类型)

You should really need to mention which kind of Array you want while defining it, MyClass can be string/number(datatype)

代码

export class TodoService {

  private _todos:Array<MyClass> = [];

  get todos():Array<MyClass> {
    return this._todos;
  }

  set todos(value:Array<MyClass>) {
    this._todos = value;
  }

}

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