[Solved] Find the error in this Ruby code snippet:array = [10, 20, 30] array.each { |x| x = x + 5 } puts array.join(',') | Ruby

Ruby - Loops and Iteration

Find the error in this Ruby code snippet:

array = [10, 20, 30]
array.each { |x| x = x + 5 }
puts array.join(',')

ASyntax error in block

BThe array elements are not changed

CMissing return statement

DIncorrect method call

Step-by-Step Solution

Solution:

Step 1: Understand variable assignment inside block
Assigning x = x + 5 changes only the block variable, not the array elements.
Step 2: Check the output
The original array remains unchanged, so puts array.join(',') prints '10,20,30'.
Final Answer:
The array elements are not changed -> Option B
Quick Check:
Block variable assignment does not modify original array [OK]

Quick Trick: Block vars are copies; modify array elements directly [OK]

Common Mistakes:

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