打字稿：从对象联合中提取类型

Question

我有一个像这样的对象联合

type NotificationState =
    | { kind: "dynamic"; state: "pending" }
    | { kind: "dynamic"; state: "deployingNodes" }
    | { kind: "dynamic"; state: "provisioningEndpoints" }
    | { kind: "dynamic"; state: "connecting" }
    | { kind: "dynamic"; state: "applyingCredentials" }
    | { kind: "static"; state: "online" }
    | { kind: "static"; state: "updating" }
    | { kind: "static"; state: "maintenance" }
    | { kind: "static"; state: "unknown" }

打字稿是否支持通过过滤器创建新类型的方法？例如，我想创建一个类型，其中 kind 是 dynamic

type DynamicNotificationState =
    | { kind: "dynamic"; state: "pending" }
    | { kind: "dynamic"; state: "deployingNodes" }
    | { kind: "dynamic"; state: "provisioningEndpoints" }
    | { kind: "dynamic"; state: "connecting" }
    | { kind: "dynamic"; state: "applyingCredentials" }

Answer 1

你想要这样的东西吗？

type DynamicNotificationState<T> =
    | { kind: T; state: "pending" }
    | { kind: T; state: "deployingNodes" }
    | { kind: T; state: "provisioningEndpoints" }
    | { kind: T; state: "connecting" }
    | { kind: T; state: "applyingCredentials" }

const v: DynamicNotificationState<'dynamic'> = {
    
}