How can you use Ruby's object model to filter an array to only objects of class String?

hard📝 Application Q9 of 15

Ruby - Basics and Runtime

AUse array.filter_class(String)

BUse array.select { |obj| obj.is_a?(String) }

CUse array.only_strings

DUse array.find_all_strings

Step-by-Step Solution

Solution:

Step 1: Understand filtering by class
We want to keep only elements that are strings.
Step 2: Use is_a? method with select
Using select with is_a?(String) keeps only string objects.
Final Answer:
Use array.select { |obj| obj.is_a?(String) } -> Option B
Quick Check:
Filter with select and is_a? for class check [OK]

Quick Trick: Use select with is_a? to filter by class [OK]

Common Mistakes:

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