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IOS Technical Test MCQs

What does a "__block" type specifier mean?

Modifications made with the variable marked with __block inside the block are not visible outside of it.

Modifications done with the variable marked with __block inside the block are also visible outside of it.

It makes the variable non-mutable within the block.

None of the above

Answer

Correct Answer: Modifications done with the variable marked with __block inside the block are also visible outside of it.

Explanation:

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