Hi,

Facebook is blocked in my country (and I think in some other countries) and links like `https://fb.me/react-invalid-hook-call` are blocked for me, in order to see the related documentation of the link I have to use VPN. so if is possible please use another link shortener service or point to `reactjs.org` directly.

Thanks.
isMessageLoopRunning = false;
    }
    
    
    needsPaint = false;
  };
  const channel = new MessageChannel();
  const port = channel.port2;
  channel.port1.onmessage = performWorkUntilDeadline;
  requestHostCallback = function(callback) {
    scheduledHostCallback = callback;
    if (!isMessageLoopRunning) {
      isMessageLoopRunning = true;
      port.postMessage(null);
    }
  };
  cancelHostCallback = function() {
    scheduledHostCallback = null;
  };
  requestHostTimeout = function(callback, ms) {
    taskTimeoutID = setTimeout(() => {
      callback(getCurrentTime());
    }, ms);
  };
  cancelHostTimeout = function() {
    clearTimeout(taskTimeoutID);
    taskTimeoutID = -1;
  };
}