Answer
Exceptions trigger stack unwinding, metadata discovery, and context capturing, making them significantly slower than normal execution.
They should be used only for true exceptional situations—not control flow.
Quick Answer
Exceptions trigger stack unwinding, handler lookup, and context capture — all expensive operations compared to normal code execution. Use them only for genuinely exceptional situations — not for control flow like checking if a key exists in a dictionary. For expected failures, use return values or TryXxx patterns.
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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