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let messages = [];
const channel = new BroadcastChannel('foo'); // Access shared channel
channel.addEventListener('message', event => {
messages.push(event.data);
});
function waitForEventsPromise(count) {
return new Promise(resolve => {
function checkMessages() {
if (messages.length >= count) {
channel.removeEventListener('message', checkMessages); // Cleanup
resolve(messages.length);
}
}
checkMessages();
channel.addEventListener('message', checkMessages);
});
}