JSVision

Appearance

@jsvision/ui / ReactiveCycleError

Class: ReactiveCycleError ​

Defined in: ui/src/reactive/errors.ts:29

Thrown when reactive propagation fails to settle within its fixed iteration limit — almost always because an effect writes a signal it also depends on, creating an update loop that never converges. Throwing (rather than looping forever) hands control back to the caller so the app never hangs. When you see this, look for an effect that both reads and writes the same signal.

Example ​

ts
import { ReactiveCycleError, signal, effect, createRoot } from '@jsvision/ui';

try {
  createRoot(() => {
    const n = signal(0);
    effect(() => n.set(n() + 1)); // reads AND writes n → never converges
  });
} catch (err) {
  if (err instanceof ReactiveCycleError) {
    console.error('reactive loop; hit', err.iterationLimit, 'iterations');
  }
}

Extends ​

  • TuiError

Constructors ​

Constructor ​

new ReactiveCycleError(iterationLimit, detail?): ReactiveCycleError

Defined in: ui/src/reactive/errors.ts:38

Parameters ​

iterationLimit ​

number

The propagation-iteration limit that was exceeded.

detail? ​

string

Optional message override for a computed-dependency cycle; when omitted, the default effect-write-loop message is used.

Returns ​

ReactiveCycleError

Overrides ​

TuiError.constructor

Properties ​

iterationLimit ​

readonly iterationLimit: number

Defined in: ui/src/reactive/errors.ts:31

The propagation-iteration limit that was hit before giving up.