I've created eventmit as Universal EventEmitter library.
You can use eventmit on browser, Node.js, also Deno.
Feature
- A single event object per an event
- Tiny code base
- Written by TypeScript
Its all code of eventmit.
var n = function () {var n = new Set();return { on: function (t) {n.add(t);}, off: function (t) {n.delete(t);}, offAll: function () {n.clear();}, emit: function (t) {n.forEach(function (n) {return n(t);});} };};export { n as eventmit }; Usage
You can create eventmit object per an event.
In other words, eventmit is an single event object.
import { eventmit } from "eventmit"; const event = eventmit<{ key: string }>(); // Register handler event.on((value) => { console.log(1, value); }); event.on((value) => { console.log(2, value); }); // Invoke handler event.emit({ key: "value" }); // Unregister handler event.offAll(); eventmit has not support multiple event type like EventEmitter or developit/mitt.
It is simple and enforce strong type with TypeScript.
import { eventmit } from "eventmit"; const changeEvent = eventmit<void>(); const inputEvent = eventmit<string>(); // subscription event changeEvent.on(() => console.log("CHANGE!")); inputEvent.on((input) => console.log(input)); 
Top comments (0)