[Solved] Consider this Ruby code snippet:arr = [1, nil, 2, nil, 3] arr.compact puts arr.inspectWhy does the output still include nil values? | Ruby

Ruby - Arrays

Consider this Ruby code snippet:

arr = [1, nil, 2, nil, 3]
arr.compact
puts arr.inspect

Why does the output still include nil values?

ABecause <code>arr</code> was reassigned incorrectly.

BBecause <code>compact</code> does not remove <code>nil</code> values at all.

CBecause <code>compact</code> returns a new array but does not modify <code>arr</code>.

DBecause <code>puts</code> cannot print arrays correctly.

Step-by-Step Solution

Solution:

Step 1: Understand compact behavior
compact returns a new array without nil values but does not change the original array.
Step 2: Check why arr still has nil
Since arr.compact was called without assignment, arr remains unchanged and still contains nil.
Final Answer:
Because compact returns a new array but does not modify arr. -> Option C
Quick Check:
compact returns new array, original unchanged = D [OK]

Quick Trick: Use compact! or assign compact result to change original [OK]

Common Mistakes:

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