angular - 类型 'BehaviorSubject' 不可分配给类型 'BehaviorSubject'

Question

我的其中一个组件中有这个:

public booleanSubject: BehaviorSubject<boolean> = new BehaviorSubject(false);

当我添加 "strictFunctionTypes": true到 tsconfig.json文件我收到以下错误:

× Compiling TypeScript sources through NGC
ERROR: path/to/my/component.component.ts:28:10 - error TS2322: Type 'BehaviorSubject<false>' is not assignable to type 'BehaviorSubject<boolean>'.
  Types of property 'observers' are incompatible.
    Type 'Observer<false>[]' is not assignable to type 'Observer<boolean>[]'.
      Type 'Observer<false>' is not assignable to type 'Observer<boolean>'.
        Type 'boolean' is not assignable to type 'false'.

28   public booleanSubject: BehaviorSubject<boolean> = new BehaviorSubject(false);

有谁知道原因以及如何通过保留 strictFunctionTypes 来避免抛出错误标志设置为 true ?

Answer 1

通常，当我创建一个 BehaviorSubject 时，我只是在初始化它时为其分配一个类型。尝试这样:

public booleanSubject = new BehaviorSubject<boolean>(false);

这样做会将 BehaviorSubject 类型初始化为 bool 值，我相信错误会消失。