Function eventTarget

test/parallel/test-events-on-async-iterator.js:228–242

()

}

async function eventTarget() {
  const et = new EventTarget();
  const tick = () => et.dispatchEvent(new Event('tick'));
  const interval = setInterval(tick, 0);
  let count = 0;
  for await (const [ event ] of on(et, 'tick')) {
    count++;
    assert.strictEqual(event.type, 'tick');
    if (count >= 5) {
      break;
    }
  }
  assert.strictEqual(count, 5);
  clearInterval(interval);
}

async function errorListenerCount() {
  const et = new EventEmitter();