Enumerators and Iterators in Ruby MCQ question and answer with solution

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What is the purpose of the detect method in Ruby enumerators?

A) Combines all elements in a collection into a single value B) Checks if any element satisfies a given condition C) Finds the first element that satisfies a given condition D) Repeats the execution of a block of code for each element in a collection

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Answer: Option C

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What does the flat_map method do in Ruby enumerators?

A) Converts a collection into an enumerator B) Maps each element to a new collection and flattens the results C) Iterates over each element in a collection and applies a block of code to accumulate a value D) None of the above

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Answer & Solution

Answer: Option B

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What is the purpose of the chunk_while method in Ruby enumerators?

A) Splits a collection into chunks based on a given condition B) Combines elements from multiple collections into arrays C) Applies a block of code to each element and returns a new collection D) Iterates over each consecutive sequence of a given size in a collection

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Answer: Option A

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What does the max method do in Ruby enumerators?

A) Returns the total number of elements that satisfy a given condition B) Returns the element with the maximum index C) Returns the element with the maximum value based on a given condition D) Returns the maximum value in a collection

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Answer: Option D

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Enumerators and Iterators in Ruby MCQ question and answer with solution | Ruby Programming MCQs