Short-Circuit for Performance

In performance-sensitive code paths, minimize unnecessary work by ordering conditions to short-circuit early, and avoid redundant async wrappers.

Apply these rules:

1. Guard with cheap predicates first (e.g., enabled/boolean flags) so later conditions/callbacks are never evaluated when they can’t change the outcome.
2. Don’t call expensive checkers unless needed: ensure threshold/count/boolean conditions gate any retryChecker(...)-style functions.
3. In async functions, return values directly—don’t wrap them with Promise.resolve, and avoid unnecessary else after a return.

Example patterns:

// 1) Guard before evaluating other conditions
const shouldRefetch = query.instances.some(instance =>
  instance.config.enabled && instance.config.refetchIntervalInBackground
);

// 2) Gate expensive retryChecker with cheaper conditions
const canRetryByCount = query.state.failureCount <= query.config.retry;
const shouldRetry =
  query.config.retry === true ||
  (canRetryByCount && query.config.retryChecker(error, query.state.failureCount));

// 3) Avoid redundant Promise.resolve in async functions
async function getData() {
  // ...
  return query.state.data; // no Promise.resolve, no redundant else
}

This reduces wasted evaluations and prevents unnecessary function calls, improving execution speed and resource utilization.