我有这四个不同的函数签名:
type BeforeHookCallbackMode = (h: IBeforeHook) => void;
type BeforeHookRegularMode = (h?: IBeforeHook) => Promise<any>;
type BeforeHookObservableMode = (h?: IBeforeHook) => Observable<any>;
type BeforeHookEEMode = (h?: IBeforeHook) => EventEmitter;
我如何创建一个父类型,这 4 种类型从中继承?这样我就可以在函数签名中使用该父类型,而不是这样做:
function(fn : BeforeHookCallbackMode | BeforeHookRegularMode | BeforeHookObservableMode | BeforeHookEEMode) {
}