[Solved] Identify the error in this Ruby code:p1 = Proc.new { |x| x + 5 } p2 = Proc.new { |y| y * 2 } p3 = p1 >> p2.call puts p3.call(3) | Ruby

Ruby - Functional Patterns in Ruby

Identify the error in this Ruby code:

p1 = Proc.new { |x| x + 5 }
p2 = Proc.new { |y| y * 2 }
p3 = p1 >> p2.call
puts p3.call(3)

AMissing parentheses in Proc.new

BUsing p2.call instead of p2 in composition

CIncorrect argument passed to p3.call

DUsing >> operator instead of +

Step-by-Step Solution

Solution:

Step 1: Understand Proc composition
The right side of >> must be a Proc, but p2.call calls the Proc immediately and returns a value.
Step 2: Identify error
Using p2.call instead of p2 causes an error because the composition expects a Proc, not a value.
Final Answer:
Using p2.call instead of p2 in composition -> Option B
Quick Check:
Check types on both sides of >> [OK]

Quick Trick: Compose Procs, not their results [OK]

Common Mistakes:

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