[Solved] What is the output of the following Ruby code?arr = [nil, 5, nil, 10] new_arr = arr.compact puts new_arr.inspect puts arr.inspect | Ruby

Ruby - Arrays

What is the output of the following Ruby code?

arr = [nil, 5, nil, 10]
new_arr = arr.compact
puts new_arr.inspect
puts arr.inspect

A[5, 10] [nil, 5, nil, 10]

B[nil, 5, nil, 10] [5, 10]

C[5, 10] [5, 10]

D[nil, nil] [nil, 5, nil, 10]

Step-by-Step Solution

Solution:

Step 1: Understand what compact returns
compact returns a new array without nil values, so new_arr is [5, 10].
Step 2: Check if original array changes
The original array arr remains unchanged as [nil, 5, nil, 10].
Final Answer:
[5, 10] [nil, 5, nil, 10] -> Option A
Quick Check:
compact returns new array, original unchanged = A [OK]

Quick Trick: compact returns new array; original stays same [OK]

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