[Solved] What is the output of the following Ruby code?arr = [nil, 1, nil, 2, 3] new_arr = arr.compact puts new_arr.inspect | Ruby

Ruby - Arrays

What is the output of the following Ruby code?

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

A[1, 2, 3]

B[nil, 1, nil, 2, 3]

C[1, nil, 2, 3]

D[nil, nil]

Step-by-Step Solution

Solution:

Step 1: Apply compact to the array
The compact method removes all nil values from the array, so [nil, 1, nil, 2, 3] becomes [1, 2, 3].
Step 2: Understand output of puts with inspect
puts new_arr.inspect prints the array as a string showing all elements, so the output is [1, 2, 3].
Final Answer:
[1, 2, 3] -> Option A
Quick Check:
compact removes nil = B [OK]

Quick Trick: compact removes nil, inspect shows array content [OK]

Common Mistakes:

MISTAKES

Master "Arrays" in Ruby

9 interactive learning modes - each teaches the same concept differently

More Ruby Quizzes

What is the output of the following Ruby code?