打字稿 getter 和 setter 错误 [英] Typescript getter and setter error
本文介绍了打字稿 getter 和 setter 错误的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
好的,这是我第一天使用 typescript 做一些 Angular 2,我正在尝试制作一个简单的 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;
}
}
谁能解释一下为什么 Typescript 编译器会抛出以下错误,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
你确实需要在定义它时提到你想要哪种 Array
,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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