Answer
Zones track async tasks and trigger change detection. Disabling them is useful for high-performance apps that manually control UI updates.
Helps in real-time or graphics-heavy applications.
Quick Answer
NgZone wraps async operations to trigger change detection automatically. Zone.js patches browser APIs to track async activity. Disable zones (zone: "noop" in main.ts) for very performance-sensitive apps - you then manage change detection manually. Run code outside Angular zone with NgZone.runOutsideAngular() for non-UI async work (WebWorkers, setInterval for counters, third-party animations).
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ