yavent/lib/src/index.d.ts

A flexible, lightweight event subscriber & emitter

export declare type Callback<T> = (payload: T) => void;
export declare type Unsubscribe = () => void;
export declare type OnEvent<T> = (callback: Callback<T>) => Unsubscribe;
export declare type EmitEvent<T> = (payload: T) => void;
export declare type Event<T> = [OnEvent<T>, EmitEvent<T>];
export declare type OnEvents<T> = <Name extends keyof T>(name: Name, callback: Callback<T[Name]>) => Unsubscribe;
export declare type EmitEvents<T> = <Name extends keyof T>(name: Name, payload: T[Name]) => void;
export declare type Events<T> = [OnEvents<T>, EmitEvents<T>];
/**
 * Create a standalone event.
 * Returns a subscriber function and an emitter function.
 */
export declare function makeEvent<T>(): Event<T>;
export declare function makeEvents<T>(): Events<T>;