[Solved] What is the issue with this Ruby code snippet?arr = [1, 2, 3] arr.each do n puts n end — Ans: The block parameter should be enclosed in pipes: do |n| | Ruby

Ruby - Loops and Iteration

What is the issue with this Ruby code snippet?

arr = [1, 2, 3]
arr.each do n
  puts n
end

AThe block parameter should be enclosed in pipes: <code>do |n|</code>

BThe array <code>arr</code> is not defined properly

CThe <code>each</code> method cannot be used with <code>do</code> blocks

DThe <code>puts</code> method cannot be called inside an iterator

Step-by-Step Solution

Solution:

Step 1: Understand block syntax in Ruby
When using do...end blocks with iterators, block parameters must be enclosed in pipes.
Step 2: Identify the error
The code uses do n instead of do |n|, which is a syntax error.
Final Answer:
The block parameter should be enclosed in pipes: do |n| -> Option A
Quick Check:
Block parameters always require pipes [OK]

Quick Trick: Always use pipes | | for block parameters in iterators [OK]

Common Mistakes:

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