What will be the output of this Ruby code?

medium📝 Predict Output Q5 of 15

Ruby - Arrays

a = [1, 2, 3, 4, 5]
b = [2, 4, 6]
result = a - b
puts result.inspect

A[2, 4]

B[1, 3, 5]

C[6]

D[1, 2, 3, 4, 5, 6]

Step-by-Step Solution

Solution:

Step 1: Understand the - operator on arrays
The - operator removes elements in the second array from the first.
Step 2: Remove elements 2 and 4 from first array
Removing 2 and 4 from [1, 2, 3, 4, 5] leaves [1, 3, 5].
Final Answer:
The difference array is [1, 3, 5] -> Option B
Quick Check:
Array difference = - [OK]

Quick Trick: Subtract arrays with - to remove elements [OK]

Common Mistakes:

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