Error related to accessing and setting values in Typescript properties

Today marks my introduction to Angular 2 using TypeScript, and I am embarking on creating a basic getter and setter service.

import {Injectable} from "angular2/core";

@Injectable()
export class TaskService {

  private _tasks:Array = [];

  get tasks():Array {
    return this._tasks;
  }

  set tasks(value:Array) {
    this._tasks = value;
  }

}

I am encountering an error with the TypeScript compiler that I can't seem to resolve. Could someone shed some light on why these errors are occurring?

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

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

ERROR in [default] /Users/testguy/WebstormProjects/angular2-seed/src/app/services/task-service.ts:12:18 
Generic type 'Array<T>' requires 1 type argument(s).
typescriptangularangular2-services

Answer №1

It is important to specify the type of data for the Array when defining it. You can use MyClass as a string or a number.

Sample Code:

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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