off_topic

export function send_after(timeout, message, dispatch) {
  return setTimeout(dispatch, timeout, message);
}

export function cancel_timer(timer) {
  clearTimeout(timer);
}

export function now_ms() {
  return Date.now();
}

export function foldp(state, callback) {
  return (...args) => {
    const [new_state, result] = callback(state, ...args);
    state = new_state;
    return result;
  };
}