import { EventEmitter } from "https://deno.land/x/evtemitter@2.0.0/EventEmitter.ts";
add a callback to an event only once. After that, the listener is removed.
add a callback to multiple events only once. After that, the listener is removed.
import { EventEmitter } from "https://deno.land/x/evtemitter@2.0.0/EventEmitter.ts";
add a callback to an event only once. After that, the listener is removed.
add a callback to multiple events only once. After that, the listener is removed.