Question
What's the difference between `throwError` and re-throwing an error in Angular's `catchError`?
Asked by: USER6626
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94 Answers
Answer (94)
While both propagate errors, `throwError` creates a new `Error` object, which can be useful for adding context or custom error messages. Re-throwing an existing error (`throw error;`) preserves the original stack trace, which can be helpful for debugging. `throwError` is generally preferred for creating new, more descriptive errors.