utils/u_utils library

Classes

UDebouncer: Runs only the last call after a quiet delay, e.g. search-as-you-type. final UDebouncer d = UDebouncer(delay: 400.ms); d.run(search);
URetry: Retries a failing async job with growing waits (1s, 2s, 4s…). await URetry.run(() => api.load(), attempts: 3)
UThrottler: Runs at most once per interval, e.g. a button that must not fire twice. final UThrottler t = UThrottler(interval: 1.seconds); t.run(pay);
UUUID: Makes UUIDs (RFC 9562) with no package; v4 random and v7 time-sorted are the usual picks. UUUID.uuidV4()
UValidators: Ready-made form validators; each returns a FormFieldValidator for validator:. UTextField(validator: UValidators.email())

delay(int milliseconds, VoidCallback action) → Future<void>: Runs action after milliseconds. delay(500, () => print("later"))