nano-pubsub/dist/index.cjs

Zero dependency, tiny (<0.5 kb) publish/subscribe

"use strict";
function createPubSub() {
  const subscribers = /* @__PURE__ */ Object.create(null);
  let nextId = 0;
  function subscribe(subscriber) {
    const id = nextId++;
    return subscribers[id] = subscriber, function() {
      delete subscribers[id];
    };
  }
  function publish(event) {
    for (const id in subscribers)
      subscribers[id](event);
  }
  return {
    publish,
    subscribe
  };
}
module.exports = createPubSub;
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