流类型对象中的动态属性名称 [英] Dynamic property names in flow typed object

问题描述

我正在慢慢地将flowType工作到我的代码中，但我正在努力解决一个概念。

I'm slowly and surely working flowType into my code, but I'm struggling with one concept.

如何指定未知的类型，动态命名对象的属性？

How do I specify the type of unknown, dynamically named properties of an object?

例如，我的用户对象可能包含一个包含具有唯一键的组织的对象。

For example my user object might have an object containing organisations with unique keys.

我该如何定义？

export type User = ?{
  currentOrg: string,
  displayName?: string,
  email: string,
  emailVerified: boolean,
  newAccount: boolean,
  organisations?: {
     UNKNOWNKEY?: string {
       orgData1: string,
       orgData2: string,
     }
  },
  uid: string,
  photoUrl?: string,
};

真的很感激任何帮助。谢谢！

Would really appreciate any help on this. Thanks!

推荐答案

Flow有特定语法：

{ [key: K]: V }

其中 K 是键的类型， V 是值的类型。

where K is they type of the keys and V is the type of the values.

你的全部示例如下所示：

Your full example would look like:

export type User = {
  currentOrg: string,
  displayName?: string,
  email: string,
  emailVerified: boolean,
  newAccount: boolean,
  organisations?: { [key: string]: string },
  uid: string,
  photoUrl?: string,
};

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