1234567891011121314151617181920
import { Evt } from "../lib/index.ts";import { assert } from "../tools/typeSafety/index.ts";
const evtText = new Evt<string>();
const text = "ok";
evtText.evtAttach.attach(    ({ op }) => !!evtText.getStatelessOp(op)(text),    () => evtText.post(text));
let str = "";
evtText.attachOnce(str_ => str = str_);
assert(str === "ok");
console.log("PASS");