📊 Python
Q. What does `dict.setdefault('key', default)` do?
  • (A) Sets a new key only if it exists
  • (B) Returns the value if key exists; otherwise sets it to default
  • (C) Raises an error if key doesn’t exist
  • (D) Deletes the key
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✅ Correct Answer: (B) Returns the value if key exists; otherwise sets it to default

Explanation: `setdefault()` returns the value if the key exists; if not, it inserts the key with the default value.

Explanation by: Mr. Dubey
`setdefault()` returns the value if the key exists; if not, it inserts the key with the default value.

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