javascript - 错误 : Type String is not assignable to type '{ name : string; }' in Angular

Question

我正在尝试在 Angular 2 中定义一个范围变量。这是代码:

export class GroceryComponent {
  task = {
    name: ''
  };
  tasks = [];
}

但它抛出以下错误:

Type String is not assignable to type '{ name : string; }' 

Answer 1

可能您代码的其他部分试图更改 task来自 instance 的属性(property)的 GroceryComponent

与此错误类似的内容:

class GroceryComponent {
  task = {
    name : ""
  };
  tasks = [];
};

let product  = new GroceryComponent();
product.task = 55; // ERROR MESSAGE: Type '55' is not assignable to type '{ name: string; }'.

交互式示例:TypeScript Playground