EventBusJS

EventBus for Javascript. mainly used in my new VUE3 projects This Eventbus is used to communicate for example between threeJS and VUE or Quasar extensions to the parent extension. In some cases it replaces a store because you can save variables at one place not necesserely in VUE itself. So it is more ore less a bridge between different Frameworks.

It replaces the code from VUE2 :

import Vue from "vue"; const EventBus = new Vue(); export default EventBus;

But in VUE3 there is not that possibility anymore

This eventbus is pure there are no other lib during runtime. So You can use it framework independent.

. Installation

npm install "vjseventbus"

. Main Usage

import EventBus from 'vjseventbus';

EventBus.$on("blah", payload=>{console.log("payload"),}) EventBus.$emit("blah", payload, )

Topic = "__default" if nothing is given

See file eventbus.spec.js for explicit usage

For testing very helpful :

https://how-to.dev/how-to-set-up-jest-for-es-module

Known Problems

If you use vite and have an error global not defined. Put this in the startup of your app:

window.global ||= window;

Found : https://stackoverflow.com/questions/72114775/vite-global-is-not-defined

changelog

0.9.1 Hint for bug with vite

0.9.0 BugfixVersion 0.8.0 added version method Eventbus can only be installed once per whole programm , so be careful.

0.7.0 changed to globalThis as a store to get the EventBus real global for communication between modules

0.6.0 added $emit2Topic

0.5.0 added id of EventBusItem added $emit2Id method 2 EventBus added uniqueness of EventName and Topic added delete a topic method added find (name,topic="__default") method

0.4.0 added namespaceing via topics (little bit like kafka)

0.3.0 eventbus can now emit to multiple listeners