React · Senior · Question 23 of 75

What happens to an error thrown during render if there's no error boundary above the component?

✓Correct answer: React unmounts the whole root tree and reports via onUncaughtError
2React shows the nearest <Suspense> fallback instead of the component
3React ignores the error and keeps the previous render result

Explanation

An unhandled render error removes the root's entire UI - showing a broken interface is worse than nothing. In React 19, createRoot has onCaughtError and onUncaughtError for logging. That's why boundaries are placed around routes and independent widgets.

What happens to an error thrown during render if there's no error boundary above the component?

Explanation

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